Choices are:
http://www.mymemory.co.uk/Micro-SDHC/SanDisk/Sandisk-32GB-Micro-SD-(SDHC)-Card---Class-4
http://www.amazon.co.uk/SanDisk-Mobile-MicroSDHC-Memory-Adapter/dp/B005FQLN28
http://www.mymemory.co.uk/Micro-SDH...o-SD-Card-(SDHC)---Class-10-+-USB-Card-Reader
http://www.amazon.co.uk/Samsung-MB-...cro/dp/B005FY61EK/ref=pd_bxgy_computers_img_c
For those that dont want to click on the links the choices are:
Sandisk 32GB Class 4
SanDisk 32GB Ultra Class 6
Lexar 32gb Class 10
Samsung 32GB Class 10
Some say class 4 for max random reads/writes which is better for our devices and some say class 10 has max sustained reads and writes
Havent heard much on the ultra...
I currently use the Sandisk 32gb cl 4. Works well.
But before this I had a 16gb class 10 Patriot which was a tad bit faster on the load, but I need the space more than the speed at this point lol.
That Sandisk Class 10 you have listed in your links is a Class 6.
The Samsung one is the best of the lot. Class 10 continuous speed and benchmarks similar to the Sandisk Class 4 for Random R/W. I just received my 32 GB Samsung a few days ago.
edit: I couldn't find much info on that Sandisk 32GB Mobile Ultra (class 6). With the right hardware, the read can go up to ~30 MB/s but write is ~8 MB/s. I couldn't find any benchmarks on random r/w. If I had to guess, I would say that based on Sandisk's reputation - it should have good random r/w.
I benched my Samsung with SD Tools in my Sensation (~25% full, so not optimal).
Write: 9.4 MB/s, Read: 25.9 MB/s
I agree with k0zmic. All are good cards and you can't go wrong with any of those.
All are good cards IMO, can't go wrong with any.
Comes down to price and whether you transfer big files back and forth enough to warrant Class 10 speeds for £10 more.
Im thinking lexar or samsung
Is the samsung worth the extra cash?
totalundone said:
edit: I couldn't find much info on that Sandisk 32GB Mobile Ultra (class 6). With the right hardware, the read can go up to ~30 MB/s but write is ~8 MB/s. I couldn't find any benchmarks on random r/w. If I had to guess, I would say that based on Sandisk's reputation - it should have good random r/w.
I benched my Samsung with SD Tools in my Sensation (~25% full, so not optimal).
Write: 9.4 MB/s, Read: 25.9 MB/s
Click to expand...
Click to collapse
Yeah I think I did read somewhere (might have been on the back of the Ultra packaging) that it has better random r/w speeds.
Can you do a speed test with the Samsung with file sizes of 1MB and below? I'd like to see how it stacks up. I think it's comparable to a Class 4 card of the same size from what I've seen in other threads so it's a solid card.
liamstears said:
Im thinking lexar or samsung
Is the samsung worth the extra cash?
Click to expand...
Click to collapse
I'd go with the Samsung, from what I have read the Lexar doesn't have very good speeds with small random file sizes.
I have the lexar one it's super fast and I don't worry about space :thumbup:
Sent from my Pyramid-T using xda premium
k0zmic said:
Can you do a speed test with the Samsung with file sizes of 1MB and below? I'd like to see how it stacks up. I think it's comparable to a Class 4 card of the same size from what I've seen in other threads so it's a solid card. .
Click to expand...
Click to collapse
I'm not sure how to test with sizes 1MB and below but here's a crystaldiskmark result with the 50 mb option (I emptied the card, but it benched quicker before I had)
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
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totalundone said:
I'm not sure how to test with sizes 1MB and below but here's a crystaldiskmark result with the 50 mb option (I emptied the card, but it benched quicker before I had)
Click to expand...
Click to collapse
Wow, those are very good random speeds. I may look into getting a Samsung card. My SanDisk class4 is almost that fast in random, but is only class 4 speeds when loading the card up with info.
Sent from my HTC Sensation 4G using XDA App
personally I will go for lexar one, as it is the leading profesional card for digital camera. however every micro sd card is different so you cant expect to get the same speed from every single one, the class 10 or 6 or 4 indicate that the minimum speed is 10mb/s 6 and 4 mb/s respectively
After seeing the chart above I think im gonna grab a samsung, thanks guys!
Good price for this card too
http://www.buy.com/prod/samsung-sd-...emory-card/227345173.html?listingid=195828404
I just ordered one.
sumasage said:
Good price for this card too
http://www.buy.com/prod/samsung-sd-...emory-card/227345173.html?listingid=195828404
I just ordered one.
Click to expand...
Click to collapse
That's a nice SD card (thinking of picking one up for my camera or camcorder)...
But it won't work in our Sensations since it's a standard SD card.
Fry's had the samsung microsd card for ~36$ USD Shipped a couple days ago.
totalundone said:
That's a nice SD card (thinking of picking one up for my camera or camcorder)...
But it won't work in our Sensations since it's a standard SD card.
Fry's had the samsung microsd card for ~36$ USD Shipped a couple days ago.
Click to expand...
Click to collapse
Oh f^&* i didnt looked at it carefully, i ordered for my phone guess it wont work now...
Just received my Lexar 32 GB Class 10. Was choosing between Samsung Class 10, Lexar Class 10, and SanDisk, but went with Lexar after reading a bunch of reviews. Lexar has been in business for a while.
liamstears said:
Choices are:
For those that dont want to click on the links the choices are:
Sandisk 32GB Class 4
SanDisk 32GB Ultra Class 6
Lexar 32gb Class 10
Samsung 32GB Class 10
Some say class 4 for max random reads/writes which is better for our devices and some say class 10 has max sustained reads and writes
Havent heard much on the ultra...
Click to expand...
Click to collapse
And have you censidered adata?
- cannot post links atm
I'm using 16 GB class 6 version and it was quite good deal for me. Speed is really good and price is friendly. I'm dissapointed with sandisk after my very expensive pendrive died after one year of using....
serega12 said:
Just received my Lexar 32 GB Class 10. Was choosing between Samsung Class 10, Lexar Class 10, and SanDisk, but went with Lexar after reading a bunch of reviews. Lexar has been in business for a while.
Click to expand...
Click to collapse
Can you run a speed benchmark and let is know the result?
Sent from my HTC Sensation Z710e using Tapatalk
Insomnis said:
And have you censidered adata?
- cannot post links atm
I'm using 16 GB class 6 version and it was quite good deal for me. Speed is really good and price is friendly. I'm dissapointed with sandisk after my very expensive pendrive died after one year of using....
Click to expand...
Click to collapse
I have but they are just too expensive
Related
Greeting.
I ordered my my first Android phone from Handtec which is 8GB version so i planed to get 16GB MicroSD for storage.
I don't know what is the Best for the G. S i9000 in term of Speed.
my range is around $100.
appreciate your input.
i have a class 6 16gb which i upgraded from class 2 and read times were better on my Omnia II, large movies played smoother, and ofcourse transfering files to the class 6 was faster, the brand ive got is Trancend...
im not sure if there are faster classes.. but class 6 should be under $100
thanks Ferdimage.
I found this Transcend 16GB Micro SDHC Flash Card with SD Adapter Model TS16GUSDHC6 from newegg.com
it cost $68.99, is this what you're talking about?
so, i out this on the list.
i need opinion on the Sandisk brand.
MAJED.y said:
thanks Ferdimage.
I found this Transcend 16GB Micro SDHC Flash Card with SD Adapter Model TS16GUSDHC6 from newegg.com
it cost $68.99, is this what you're talking about?
so, i out this on the list.
i need opinion on the Sandisk brand.
Click to expand...
Click to collapse
yup thats the one im using, im not sure about sandisk,
but before my purchase i read reviews on benchmarks and Transcend vs A-Data were the fast ones at the time.
Will consider it,
Thank you.
Sandisk is considered as one of the best producers of memory cards. I personaly have Transcend 8GB class6 so far no issues.
Ordered this "Kingston 16GB Micro SDHC Flash Card w/2 Adapters Model SDC10/16GB-2ADP" which is Class 10.
from newegg.com : $98.99 with free shipping.
I think it's good.
I think the comments about movies playing more smoothly above is likely untrue, probably the result of what the user expected to see, as the read speeds are essentially the same regardless of class rating.
When do people feel a class 6 32GB card will be available?
No indication from Sandisk yet ASAIK.
If you want a 32Gb card I'd get one now, rather than wait. I'm loving mine, finally I can have my whole music collection on my phone with a little room to spare! As I mentioned, outside of big transfers to the card, the Class rating doesn't really affect in-phone performance.
NZtechfreak said:
No indication from Sandisk yet ASAIK.
If you want a 32Gb card I'd get one now, rather than wait. I'm loving mine, finally I can have my whole music collection on my phone with a little room to spare! As I mentioned, outside of big transfers to the card, the Class rating doesn't really affect in-phone performance.
Click to expand...
Click to collapse
Seeing as the 32GB MicroSD is a Class 2 only at the present, how do you find read/write times?
I'm seriously looking to obtain one myself.
EDITED:
I realize you don't have your i9000 yet and that you are using the 32GB card with another phone but besides the read/write times I mention above, what about basic operation such as Movie Recording?
What concerns me is if the 32GB Class 2 card is not going to be fast enough for the i9000's 720p video recording.
For SD cards, the class rating is the same as the write speed in Mbytes. i.e. Class 2 = 2MB/s, Class 10 = 10MB/s etc.
Although like most users I got better speeds than that when I loaded it in a card reader.
Recording in 720P is the only concern area I have, I suspect it won't be fast enough for that... But then I won't need to use my internal 8GB for anything will I, so I'll just record to that...
TravUK said:
For SD cards, the class rating is the same as the write speed in Mbytes. i.e. Class 2 = 2MB/s, Class 10 = 10MB/s etc.
Click to expand...
Click to collapse
Yes, I'm happy with these type of results TravUK.
I never believe them though because there are so many non-related tests that can effect the results.
I always look at real results.
NZtechfreak said:
Although like most users I got better speeds than that when I loaded it in a card reader.
Recording in 720P is the only concern area I have, I suspect it won't be fast enough for that... But then I won't need to use my internal 8GB for anything will I, so I'll just record to that...
Click to expand...
Click to collapse
I thought you would get better results than stock figures.....
Yes, I agree the 720p does look as if we will be asking too much of the card.
However, I rather like the idea of Internal Memory. I simply forgot all about that.
Nice one.
I think class 4 should be sufficient as my hd canon camera recording using class 4 SD card
TravUK said:
For SD cards, the class rating is the same as the write speed in Mbytes. i.e. Class 2 = 2MB/s, Class 10 = 10MB/s etc.
Click to expand...
Click to collapse
The SanDisk ultra 16GB(class 4) writes in 15MB/s. It's even faster than Kinston class 10.
I would wait for 32GB ultra from Sandisk. I'm getting the 16GB ultra for now, as internal memory is 8GB+2GB ROM...
Fredag said:
The SanDisk ultra 16GB(class 4) writes in 15MB/s. It's even faster than Kinston class 10.
I would wait for 32GB ultra from Sandisk. I'm getting the 16GB ultra for now, as internal memory is 8GB+2GB ROM...
Click to expand...
Click to collapse
Speed Class Rating
The Speed Class Rating is the official unit of speed measurement for SD Cards, defined by the SD Association. It is equal to 8 Mbit/s, and it measures the minimum write speeds based on "the best fragmented state where no memory unit is occupied"
The following are the ratings of some currently available cards:
* Class 2: 16 Mbit/s (2 MB/s)
* Class 4: 32 Mbit/s (4 MB/s)
* Class 6: 48 Mbit/s (6 MB/s)
* Class 10: 80 Mbit/s (10 MB/s)
From wikipedia
bajica said:
Speed Class Rating
The Speed Class Rating is the official unit of speed measurement for SD Cards, defined by the SD Association. It is equal to 8 Mbit/s, and it measures the minimum write speeds based on "the best fragmented state where no memory unit is occupied"
The following are the ratings of some currently available cards:
* Class 2: 16 Mbit/s (2 MB/s)
* Class 4: 32 Mbit/s (4 MB/s)
* Class 6: 48 Mbit/s (6 MB/s)
* Class 10: 80 Mbit/s (10 MB/s)
From wikipedia
Click to expand...
Click to collapse
Not all cards conform to this rule. It really does differ card to card.
The Sandisk Ultra is indeed a much quicker card, despite it only having a Class 4 rating.
Yeah, I am not making it up. Here are the Swedish benchmarks:
This one is for 16 GB Kingston class 10:
h**p://pici.se/pictures/tVwgvEzSN.gif
This one is for 16GB Sandisc ultra class 4:
h**p://pici.se/pictures/LDRhPbWLi.gif
I am almost a bit offended that you actually lectured me with Wikipedia, lol!
But I was confused to, it turns out that it's a known mystery that Sandisc don't claim the higher classes. I almost got the inferior Kingston for a significantly larger price. As seen above, the Ultra is also better when only small bits of data is used, so there you go... I hope this helps!
EDIT:
Lol, I can't post pictures yet, you have to do the cut and paste magic... Can a mod please release me, as I'm trying to contribute to the site?
Fredag said:
Yeah, I am not making it up. Here are the Swedish benchmarks:
This one is for 16 GB Kingston class 10:
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This one is for 16GB Sandisc ultra class 4:
I am almost a bit offended that you actually lectured me with Wikipedia, lol!
But I was confused to, it turns out that it's a known mystery that Sandisc don't claim the higher classes. I almost got the inferior Kingston for a significantly larger price. As seen above, the Ultra is also better when only small bits of data is used, so there you go... I hope this helps!
EDIT:
Lol, I can't post pictures yet, you have to do the cut and paste magic... Can a mod please release me, as I'm trying to contribute to the site?
Click to expand...
Click to collapse
There you are Fredag, I've added the pics you forwarded displayed in your quote.
I am looking to buy this card soon, and was wondering if Desire does actually support class 10 cards. I know, it's serioux, but hell, 8gb and class 10 for 12 euro sounds too friggin good. Will it be fine with my phone?
It supports it, yes. But in my opinion class 10 is a bit overkill for the day-to-day things you do with your phone. A friend of mine had a class 10 8gb card and bought a class 6 16gb card. He said he noticed no difference..
But yeah, with that price!
I mostly need it for app2sd ROMs as well as for the DHD ports, so big speed is what I need. Aside from that, more space for movies and music is always good. I am currently using the stock one that came with the phone, class 2, 4gb and sometimes I really need more space.
Umm, SDHC vs. microSDHC ? Link is for SDHC, you can't fit that one in Desire .
You will spot BIG difference in running any DHD (or normal) + DATA2SD Rom on class 6 and 10. If you are using the phone "on daily basis" you don't even need root. If you want to have full custom lil monster of space (DATA2SD), performance (Custom ROM) and speed (Class 10 SD Card + Overclocking), class 10 16 GB card is must have
Yes it supports Class 10 . I completely agree with the previous post
m4dm4n123 said:
Umm, SDHC vs. microSDHC ? Link is for SDHC, you can't fit that one in Desire .
Click to expand...
Click to collapse
Yup yup, like m4dm4n said, it's physically about four times to big to fit in the Desire. Wrong card type.
kl_arnet said:
You will spot BIG difference in running any DHD (or normal) + DATA2SD Rom on class 6 and 10. If you are using the phone "on daily basis" you don't even need root. If you want to have full custom lil monster of space (DATA2SD), performance (Custom ROM) and speed (Class 10 SD Card + Overclocking), class 10 16 GB card is must have
Click to expand...
Click to collapse
Can you prove that with any benchmarks or is it just your imagination?
Class 10 means it's capable of writing 10MB/s. Apps2SD is mostly about reading data and I'm pretty sure you wont get much difference in speed between class 4 and class 10 in reading on a phone.
Also I'm afraid that the phone/app itself might not be able to write that fast.
I would spend the money on class 2/4 32GB card and have all my music with me.
I just recently bought the Patriot 32gb microSDHC class 10 card and after careful troubleshooting I found that it was the cause of my screen not waking up and random crashes. Perhaps older class 10 cards would work, or maybe it's the mix of 32gb with class 10? I'm getting the sandisk 32gb class 2. Hopefully that will work better.
I didn't know they make 32gb class 10. If the card makes your phone buggy that is surely not because its class 10. Maybe you should get the card replaced?
I can confirm 16GB Class 10 MicroSDHC works fine on Desire:
http://cgi.ebay.de/Team-Class-10-Mi...MemoryCards&hash=item45f7e46ce0#ht_2460wt_905
I use A2SD+ and its way faster than the shipped class 2
I bought a kingmax 16 gb class 10 and im very happy with the performance. I use DHD rom with data2ext and its very fast. Plus the mounting time or should I say preparing sd card time during the startup is much much faster compare to me previous class 2 memory card. If u have the money go for class 10. Otherwise class 6 will do fine.
Sent from my HTC Desire using Tapatalk
stingerpl said:
Can you prove that with any benchmarks or is it just your imagination?
Class 10 means it's capable of writing 10MB/s. Apps2SD is mostly about reading data and I'm pretty sure you wont get much difference in speed between class 4 and class 10 in reading on a phone.
Also I'm afraid that the phone/app itself might not be able to write that fast.
I would spend the money on class 2/4 32GB card and have all my music with me.
Click to expand...
Click to collapse
I didn't follow the thread. I've bought class 10 16 gb a-data card and collecting it today. I'll post the benchmarks of class 2, class 10 and maybe class 4 cards running on StarBurst DATA2 ROM.
Swyped via StarBurst Desire.
Benchmarks
Desire StarBurst ROM @1113Mhz with DATA2SD
Samsung Class 2 4GB MicroSD (got it with my phone) benchmarks made on phone:
Quadrant:
http://imageupload.org/?di=312972400847
http://imageupload.org/?di=912972402260
AnTuTu:
http://imageupload.org/?di=1112972403269
http://imageupload.org/?di=1612972404305
Kingston Class 10 16GB:
ATTO Benchmark found on the web:
http://www.informaticaeasy.net/imag...croSDHC 16GB Class 10/microSD Class10 - 3.png
A-DATA Class 10 16GB of my friend (the same I'm getting today):
ATTO Benchmark :
http://images40.fotosik.pl/584/d86104ee0938b22d.jpg
When I get the A-DATA card with Adapter(today after work), I'll post more benchmark results so we can compare them.
All tests on phone are with running DATA2SD script, so please note they would be higher on clean stock rom (as DATA2SD script is constantly using card). That is why I insist class 10 is must have if you want to get good performance over DATA2SD ROM.
A-DATA Class 4 4GB + 1GB Nokia stock:
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Stock Samsung Class 2 4GB:
Quadrant:
AnTuTu:
A-DATA Class 10 16GB:
ATTO Benchmarks
Recovery Mode Ra Desire 2.0.1 via USB Mass Storage Toggle:
Quadrant DATA2SD Standard:
Quadrant DATA2SD + BusyBox Fix:
AnTuTu:
SD Card Speed Test:
Theme:
Which version of busybox you used because your "Busybox fix" improve performance .
Original text by Siebre (Author od DATA2SD code is used in DroidZone's StarBurst ROM I'm using).
if you want to impress your friends with Quadrant score, just add "noauto_da_alloc" in the mount option of the script or
do this manually with adb shell : busybox mount -o remount,noauto_da_alloc /data
To get back to normal: busybox mount -o remount,auto_da_alloc /data
Click to expand...
Click to collapse
With that, Quadrant shows your real I/O SD Card score.
kl_arnet: of the cards you tested, which would you recommend for speed/performance vs cost as the best "bang for your buck" ?? I am returning a Patriot LX Series 8GB Class 10 (PSF8GMCSDHC10) as I could only achieve an average of 2.5 for write speeds using StarBurst 1.2.1. The read speeds were fantastic at greater than 12. But the write speeds made the phone a bit too laggy, so I have reverted back to my stock 8gb samsung class 2 and Modaco R9 until I can find a decent class 6 or class 10 card that will have guaranteed decent write speeds in StarBurst.
thanks!
This ADATA class 10 16 gb just amazed me.
Model:
They are sold in 2 versions but card itself is the same. Difference is only in add-ons.
AUSDH16GCL10-RM3RDRD Cheaper with red USB adapter (the one I've got)
AUSDH16GCL10-RM3BKBL More expensive (about 8 $ more) with SD card adapter (that you don't need or have plenty of those), with black/blue light USB adapter (wich U will use probably once for benchmarks)
Both USB Adapters are really small and you can show off with MicroSD card literally going under the USB plug.
Price:
I've paid 125 PLN that is about 40 $ at internet shop (be careful on ebay as they sell chinese cheap fake crap from dealextreme.com). Card is doing very well especially if you compare speed and price to Kingston or SanDisk.
Speed:
I'm not professional IT technician so I was really surprised that home made benchmark went better than Kingston's (usually overboosted) found on benchmarking site.
Performance:
StarBurst with Siebre's dedicated DATA2SD runs smoothly, especially after last Siebre's dalvik2nand update.
Long Story Short:
I'm happy with cheap genuine ADATA Class 10 16 gb card.
Swyped via StarBurst Desire.
Thanks, A-Data and Wintec seem to be recommended for cheaper cards, though the prices in Canada are not nearly as good as where you are it seems. I may have to try and get the 8GB A-Data class 6 when it is back in stock at a Canadian online retailer.
thanks again for the metrics and recommendation.
Trying to clear something up - I will be getting a 32GB SDHC Card but wondering about which particular one to go for. There is the SanDisk 32GB microSDHC Card which is listed as Class 2 but theres varying opinions about the actual speed of it compared to cards that are a higher class for example the Lexar 32GB microSDHC Card which is a Class 10.
I'm trying to find out how much of a difference the Class 10 makes to the Class 2 if any because I have read on quite a few different sites the SanDisk Class 2 is just as fast reading and writing?
Here are both the cards
http://www.expansys.com/sandisk-32gb-microsdhc-card-microsd-32gb-class-2-197717/?partner=aw&ito=AFW78888&awc=2959_1301260049_6705c794bf850061e50959b4e440eca8
http://www.expansys.com/lexar-32gb-microsdhc-high-speed-card-with-reader-class-10-208567/?partner=aw&ito=AFW78888&awc=2959_1301260213_cd6f332daa757821910686daf28cb561
If it's class 2 it means it has minimum read/write speed of 2MB/s, while class 10 is 10MB/s.
The Lexar card seems kinda phony.
If it's true I regret buying a Kingston 32GB class 4 for 90€
Foladko said:
If it's class 2 it means it has minimum read/write speed of 2MB/s, while class 10 is 10MB/s.
The Lexar card seems kinda phony.
If it's true I regret buying a Kingston 32GB class 4 for 90€
Click to expand...
Click to collapse
Prices vary here in the UK significantly depending on which retailer so I wouldn't feel bad.
Heres the Lexar again from another store its even more
http://www.play.com/Mobiles/Mobile/4-/18934088/Lexar-32GB-Micro-SDHC-Class-10-with-Reader/Product.html
I'm just trying to find out for fact is the Lexar Class 10 better as I have always bought SanDisk only.
Would be nice to hear from anyone who has that Lexar card that could confirm if its any good or not.
Sandisk usually deliver more than promised, so a class 4 could be performing like class 6 or even class 10. On the other hand if it performs just like class 4, you can't return it claiming there is something wrong with it. Anyway if i could spare the money for these cards I'd probably go for the SanDisk and hope for higher speeds - their quality is unmatched.
Thanks for that I ordered the SanDisk as you said they are reliable and I have never had any problems with either their sdhc or camera cards.
Sent from my Desire HD using XDA App
I'd recommend Patriot 16gb class 10, just received it today after ordering from Amazon last week! Many good review from other users as well and the price ain't expensive for 16gb Class 10!
Careful when buying Sandisk, I have read there are many counterfeit items sold very cheap on eBay. Those probably are the cards that were rejected by Sandisk (didn't pass QC).
I've always bought genuine SanDisk from reputable places, have this one coming from play.com. I know what your saying about eBay I would never use that place or market type sellers as they are bad news. I was debating the Lexar but too many bad reviews put me off. I haven't heard of that Patriot brand before here in the UK, there's so many though.
I know the SanDisk one I've ordered is class 2 but many people say it performs like class 4 due to SanDisk build. There reliable too that's really why I went for that one, should do the job fine.
Sent from my Desire HD using XDA App
If the speed of 32gb Sandisk was just as good as a class 10 card, then sandisk would label it as class 10. You might be able to see a class 2 card with read/write speeds of above 10mb/s but that doesn't mean that it's as fast as a class 10 card. The class of the card only shows the MINIMUM sustained read/write speeds of the card and has nothing to do with the peak speeds.
My patriot 16GB class 10 is significantly faster than my older 8GB transcend class 6 card, here are some speed comparisons using SD-Tools:
Class10 Patriot - Class6 Transend
As you can see even the class 6 reached over 10mb/s mark, but if I start copying large amount of smaller files (mp3 for example) the speed of the class 6 card plumets to 6mb/s while the class 10 card stays at around 10mb/s.
I have a SanDisk class 2 (8GB), write speed is 7MB/s and read speed 14MB/s.
That's faster than class 6!
ToneyEricsson said:
http://www.play.com/Mobiles/Mobile/4-/18934088/Lexar-32GB-Micro-SDHC-Class-10-with-Reader/Product.html
Click to expand...
Click to collapse
dont know about speeds, but i do know that card on play was £54.99 a few days back!
mymemory have this one @ £49.99, class 4
http://www.mymemory.co.uk/Micro-SDHC/MyMemory/MyMemory-32GB-Micro-SD-(SDHC)-Card---Class-4
It takes at least a class 6.
panart said:
I have a SanDisk class 2 (8GB), write speed is 7MB/s and read speed 14MB/s.
That's faster than class 6!
Click to expand...
Click to collapse
That's the kind of things I have been reading about the SanDisks. The reality seems to contradict classes of cards.
Sent from my Desire HD using XDA App
Lexus 32GB Class 10
I have a Lexus 32Gb Class 10 in my DHD - I swapped it from my SanDisk 32GB Class 2.
It seems faster and so far if anything has had fewer problems than the SanDisk. It is also cheaper in some places than the SanDisk.
What is the best brand/class to go for?
sandisk 16gb microsdhc class2
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Xepht said:
sandisk 16gb microsdhc class2
Click to expand...
Click to collapse
130.8Mb read speed????
WTF????
If you are willing to spend your money, a class 10 will be good. It depends on your needs actually. If you only need it for storage, normal standard will be good.
Haha thats crazy
Sent from my Desire HD using XDA Premium App
i heard that kingston will release a 32GB Class10 card in the second quartile of 2011 ... i will wait for that one, maybe the other prices will go down. or the kingston is just better as all other
DanteGR said:
130.8Mb read speed????
WTF????
Click to expand...
Click to collapse
I've had 9.0 Write and 170.6 Read on my Lexar 16Gb Class 6
Going to start using the Inspire as my main music player (thanks to Ubermusic, which is simply too good to resist).. looking for recommendations on a 16/32gb microSD.
Also, question: how come Sandisk only has class 4 microSD's? I'm all for getting myself one of these as the reviews are great.. but there might be something faster out there that's close in terms of reliability?
I have encountered zero issues with my PNY 32 gb class 10 card. New Egg has them pretty cheap when they are in stock.
Sent from my Inspire 4G using the power of the dark side.
I've always bought sandisk over the past couple years for my cameras and they been great, very reliable an fast. Right now I have a 32gb class 6 in my Inspire for the past couple months and it's been great for music and movies
I've had good luck with the Patriot 16gb class 10 I bought at newegg.
SuicideMyk said:
I've always bought sandisk over the past couple years for my cameras and they been great, very reliable an fast. Right now I have a 32gb class 6 in my Inspire for the past couple months and it's been great for music and movies
Click to expand...
Click to collapse
Where did you find a 32gb class 6 Sandisk microSD? I think you meant class 2..
I ordered a 16gb Sandisk Class 4 MicroSD from Newegg. It's only $20 after promo code EMCKBJJ33, free shipping.
biglittlegato said:
I have encountered zero issues with my PNY 32 gb class 10 card. New Egg has them pretty cheap when they are in stock.
Sent from my Inspire 4G using the power of the dark side.
Click to expand...
Click to collapse
Got the exact same one from Newegg, has been great for me.
Pheno.menon said:
Where did you find a 32gb class 6 Sandisk microSD? I think you meant class 2..
I ordered a 16gb Sandisk Class 4 MicroSD from Newegg. It's only $20 after promo code EMCKBJJ33, free shipping.
Click to expand...
Click to collapse
That's a great price I paid 25 off ebay for a 16gb....
yeah thats my mistake it's actually a sandisk 32gb micro sdhc flash memory card writing at 6 mbs and reading at 12.5 mbs around what the min of a class 6 would be doing
SD Tools app(no speed boost)
I gave the SD Tools app a shot after seeing your post and it's a cool app! Here's what I got with my aforementioned PNY class 10 32GB card. $60 from newegg.
I've been using a Class 10 32GB Lexar in my HTC Inspire 4G for a few months now, and it works great.
- BigT74
Sent from my Desire HD using XDA App
I paid 20 for a Patriot Class 4 16GB. Worked great. Was pretty fast and large enough for me. But I like to be the guy with all the overkill stuff. So I'm getting a 32GB next.
I just ordered the PNY 32gb class 10. Upgrading from a 16gb class 4 that my wife fried when she took a picture and somehow turned the phone off at the exact same time... Tried everything to get it back to life - but maybe it was divine intervention.
I have a Patriot 16gb class 10 card from Newegg, results have been mixed. Speeds are awesome, but reliability has been an issue. Twice I have had the card become corrupt and had to fix with Chkdsk in Windows, and I have had several individual apps become corrupt and require a reinstall. Not major issues, just minor annoyances for me.
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Sent from my Desire HD using XDA App
PNY class 10 32gb microSD. No problems at all. Plenty of speed for me.
Sent from my Inspire 4G using the power of the dark side.
PNY 32GB microSDHC card
Ditto on the PNY 32gb microSD card. Works flawlessly on my Inspire. Seems a lot speedier than the 16gb one that came with the phone. Be ready to shed 2gb from formatting though, since it will only have a total capacity of 29.9gb on the card before tossing anything in it.
Get it from newegg. It was relatively inexpensive for it being a class 10 card, and shipping was fast.
wangtang2k said:
Be ready to shed 2gb from formatting though, since it will only have a total capacity of 29.9gb on the card before tossing anything in it.
Click to expand...
Click to collapse
Yes, this is the way memory works, you always get less than the advertised capacity. Bits vs bytes.
Also, you may notice different sizes with different allocation sizes...
Sent from my Desire HD using XDA App
winsettr said:
Yes, this is the way memory works, you always get less than the advertised capacity. Bits vs bytes.
Also, you may notice different sizes with different allocation sizes...
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
You're right about the allocation sizes.
I used 32kilobytes for my allocation size when I formatted the card. Using anything below that caused my previous card to have a somewhat jittery experience on my phone when watching downloaded movies. Then again this new card is a class 10 as opposed to the class 2 16gb microsd card that came included with the phone.
I don't mind losing the 2gb since I have more than adequate space for my music and media on the go for the price paid. =D
came across a more accurate sd card tester
https://market.android.com/details?...cardtester.SDCardTester&feature=search_result
SuicideMyk said:
came across a more accurate sd card tester
https://market.android.com/details?...cardtester.SDCardTester&feature=search_result
Click to expand...
Click to collapse
Thanks for the link. Seems to be a more straight-forward tester with less eyecandy. Accurate results for testing whether some peeps buying cheap rebranded cards from places like eBay got good deals or duds.
truly there are sandisk class 6
Based on past reviews in the Inspire/DesireHD threads: Sandisk and PNY are pretty safe. Patriot is hit&miss with quality control. Transcend has been downright problematic (surprising, I use to like that brand). Lower "Class" cards tend to be more reliable, but slower (obviously). It seems to be due that the higher-class cards may have higher power requirements while writing, but I can't find any way to confirm that (rumor, really).
I got a Sandisk Class-4 16GB card for my Inspire. It's been rock-solid. Now that 32GB cards are common, the 16GB cards are dirt cheap these days.
- Jim
Hello,
I just enabled a2sd, on my HTC Desire, and I have moved the cache and the data (In-short Everything) to the SD card so now 208Mb free out of 218Mb. I have the stock SD card, it's class 2. So after I moved the data to the SD I feel that applications take like 3-6 seconds to open sometimes less and sometimes more. I was wondering what SD class I should buy?
I am not interested in SD cards by their price or storage. My only concern is fast random access. Because as far as I have red till now, you may get a class 10 SD card and get disappointed because still the performance will be slow and it maybe even slower than the class 2 card I use now. So if I am not wrong, and what I should check in an SD card is the random access please tell me your suggestions for my new SD card, and if possible the random access speed of your suggestion.
Well I was researching for a MicroSD card and decided on the 32GB SanDisk MicroSD card which I paid £24.99 and free delivery in the UK, although I paid £5 for postage as I wanted it fast!!
I would say this is exactly what I found, perfect card and not had any issues with it at all! It's a class 4 but like you say, random read / writes are most important!
http://forum.xda-developers.com/showthread.php?p=15269669#post15269669
Consider only class 4 or class6 cards. With class 10 there is speed writing large files but because of that the random access writing of small files is very slow. Class 2 cards on the other hand are "just class 2 cards". Class 4 is good but for desire for the most speed comes from a class 6 card. Even if you want to record 720p video you need a class 6 card. I have had a class 4 and the video was laggy.
I'm using class 2 and class 10 SD card on my devices. both ROMs using X2SD and class 10 really faster.
I am using A-data 16gb class 10 card with no problem
I'm using an 8GB class 6 working well here with app2sd. and also with mounted EXT4 1gb partition.
wings400 said:
With class 10 there is speed writing large files but because of that the random access writing of small files is very slow.
Click to expand...
Click to collapse
Source?
10char
DaveRichardson said:
Source?
10char
Click to expand...
Click to collapse
I guess I can post links now...
http://www.tomshardware.com/reviews/microsdhc-memory-card-performance,3011.html
How "fast" is a card determines it's class:
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What we actually care about, random writes between 4kb (one simple write) to 512kb (more heavy sustained writes):
Let's say you see MemoryStar class 10 doing over 20mb/s write speeds and go all "holy dildos this is freaking amazing!!!", but then you take a look at the random writes benchmarks, where it is doing only 1.1mb for 512kb blocks and 0.01mb for 4kb blocks.
Compare that to Sandisk Mobile Ultra class 4, doing just a tiny 16mb/s, but instead can write at 2.7mb/s using 512kb blocks or 0.025mb/s using 4kb blocks (2x faster).
Which one do you choose between the two, at the same price? The class 10 or the class 4?
Another interesting thread: http://forum.xda-developers.com/showthread.php?p=15269669#post15269669
BombaUcigasa said:
I guess I can post links now...
http://www.tomshardware.com/reviews/microsdhc-memory-card-performance,3011.html
How "fast" is a card determines it's class:
What we actually care about, random writes between 4kb (one simple write) to 512kb (more heavy sustained writes):
Let's say you see MemoryStar class 10 doing over 20mb/s write speeds and go all "holy dildos this is freaking amazing!!!", but then you take a look at the random writes benchmarks, where it is doing only 1.1mb for 512kb blocks and 0.01mb for 4kb blocks.
Compare that to Sandisk Mobile Ultra class 4, doing just a tiny 16mb/s, but instead can write at 2.7mb/s using 512kb blocks or 0.025mb/s using 4kb blocks (2x faster).
Which one do you choose between the two, at the same price? The class 10 or the class 4?
Another interesting thread: http://forum.xda-developers.com/showthread.php?p=15269669#post15269669
Click to expand...
Click to collapse
Dang, that's quite a citation. I ordered a 16gb Class 10 last week because it was the same price as the Class 6s I was seeing--looks like I didn't get as great a deal as I thought.
wings400 said:
With class 10 there is speed writing large files but because of that the random access writing of small files is very slow.
Click to expand...
Click to collapse
It isn't question of class but I/O controller.
DaveRichardson said:
Dang, that's quite a citation. I ordered a 16gb Class 10 last week because it was the same price as the Class 6s I was seeing--looks like I didn't get as great a deal as I thought.
Click to expand...
Click to collapse
Ah, but now you have a huge capacity of storage, and you can transfer files quickly
Depends on the maker, not all designs are equal. Make sure to install this: https://market.android.com/details?id=com.sdincrease.it
My best choice at the moment is the Kingston 8Gb Class 10.
Please note that these are benchmarks performed with a limited test on a different hardware and design on a PC, and not inside your phone.
as i posted somewhere else, i really don't feel any speed advantages between a class 6 16gb and a class 10 32gb card, so save your money :-D
but if you often use it to share big files, then it's better to buy a higher class card, because the transfer rate is better
i m using a mustang 16Go class 10 and it's own
12 Mo/s in write
19 Mo/s in Read
Enough for a2sd and daily use
How do you test the mb speed of your microSD?
Sent from my HTC Desire using XDA App
As far as I know, many of the higher class cards have been produced by biasing performance to continuous read/write speeds, for use in camcorders/cameras etc so they can record ultra HD or burst capture etc. HOWEVER, for use in a phone, which needs greater random read/write access they can suffer compared to a regular class 4 which is a better balanced card. There is a lot of this going on in the HTC Mozart pages here on XDA, where I've been spending time (had a Mozart, ROM'd it and gave it to my girlfriend, she loves it).
Many people have tried different 32gb/16gb cards, different classes from 2-10 and the results have been surprising. WP7 seems to be unusually fussy about the cards that will actually work with it, and the only card guaranteed to work everytime is SANDISK which says a lot about the quality, and people have been finding that performance with a Class 4 SanDisk card is better than performance with a supposed Class 10 card by another manufacturer such as Integral, Transcend etc or even Samsung and Kingston.
In the end I bought a 32gb SanDisk Class 4 off Amazon, for a lot more than they are on eBay at around £28, apparently there are loads of near-fakes on eBay (only way I could guarantee it was genuine- the chinese are using genuine 4gb SanDisk cards and then re-branding and re-coding them as 32gb, the card thinks it's a 32gb, reports that it's a 32gb card but obviously runs out of room and has errors as soon as you try to put stuff on it).
I am more than happy with my new class 10 Samsung 16GB card, I have been using it with the new Aurora ROM (version 5) and it is a beauty! I previously had the original-packed 4GB class 2 card, it was an absolute nightmare - I really can't tell why it took me so long to get over it and buy the new one.
I am using Samsung Class 6 8Gb card. Seems good right now
I have tried Transcend Class 10 Card but I think its not compatible as the phone constantly reboot, and sometimes it says SD Card Error.
I have a card class 6 and is very fast!
Enviado desde mi HTC Desire usando Tapatalk
class 6 is optimal for me
card speed
this might have been posted earlier....but FYI http://wiki.cyanogenmod.com/wiki/SDCardSpeedTests could be useful.
I use a sandisk 32gb ultra....it is class 2 according to the list (see bottom of the page for further info...but provides class 6 speeds