Class 6 vs class 10 - General Questions and Answers

Hey. .. I am using a HTC desire. .rooted. .for almost a year now.. here's my biggest problem. I have been using Transcend 16gb CLASS 2 card. . Which is very slow. And I need to to buy a new card.. I was wondering if I should
Buy a class6 card or a class 10.. how much would the performance be affected. .moreover. . Which company is better transcend ..SanDisk. .or anything else.. ?!
Please help.
Sent from my HTC Desire using xda premium

the best purchase atm is: Samsung micro SDcard class 10 - good price, good quality, very fast

Go for a class 10. I really notice a difference using my SLR camera when I swap between a Class 6 and the 10 - the 10 being way faster.

Dr. div11 said:
Hey. .. I am using a HTC desire. .rooted. .for almost a year now.. here's my biggest problem. I have been using Transcend 16gb CLASS 2 card. . Which is very slow. And I need to to buy a new card.. I was wondering if I should
Buy a class6 card or a class 10.. how much would the performance be affected. .moreover. . Which company is better transcend ..SanDisk. .or anything else.. ?!
Please help.
Sent from my HTC Desire using xda premium
Click to expand...
Click to collapse
Class 10 all the way. I have a class 10 and it's slow, I wonder how slow will a lower class be.

I use class 10 cards in my DSLR, and would normally recommend them, however after installing CM7 on a microSD for my mother's nook color everything I read said your better getting a SanDisk class 2 than anything else, even in class 10. Apparently there is not a good standard for rating cards. I would recommend looking up specific benchmarks and choose from them.

JamMasterClay said:
I use class 10 cards in my DSLR, and would normally recommend them, however after installing CM7 on a microSD for my mother's nook color everything I read said your better getting a SanDisk class 2 than anything else, even in class 10. Apparently there is not a good standard for rating cards. I would recommend looking up specific benchmarks and choose from them.
Click to expand...
Click to collapse
I would not suggest a class 2 card as Android has issues reading it due to it being too slow. I have used class 4 and class 10 and I can feel a huge difference in the read and write speed.

Hi. I found this thread be very informative in my seach for a new sd card.... I'm searching the net for a good deal 32g micro sdcard @ 4 class.
http://forum.xda-developers.com/showthread.php?t=1150369
Sent from my PC36100 using xda premium

:(My SD only 4

han-yunzhong said:
:(My SD only 4
Click to expand...
Click to collapse
you mean class 4? its not that bad - in my Motorola Pro has been inside just 8bg class 2

JamMasterClay said:
I use class 10 cards in my DSLR, and would normally recommend them, however after installing CM7 on a microSD for my mother's nook color everything I read said your better getting a SanDisk class 2 than anything else, even in class 10. Apparently there is not a good standard for rating cards. I would recommend looking up specific benchmarks and choose from them.
Click to expand...
Click to collapse
Careful when buying sandisk especially online. There are some bad apolss out there selling improperly marked sd cards which say class 10 but really are just class 2.

Well Class 2 guarantess you 2MB/s, Class 6 6MB/s and Class 10 10MB/s.
6 is enough, 10 is better, see what you can afford.
Probably a tradeoff between speed and space.
Check how much space you really need.

Is it class so important?
I mean..when you have a class 4 isn't just enough for a smartphone?

Same thought. I have an 8GB class 4 SD card and i feel fine with it.

Jigen90 said:
Is it class so important?
I mean..when you have a class 4 isn't just enough for a smartphone?
Click to expand...
Click to collapse
For just having media files on there, probably.
If you start putting apps to be run from there, you wan't as much speed as possible.

I think it much more depends on your ROM, not your external card. I have installed my apps on the ext2 partition and it does not appear to have any differences.
Sent from my GT-S5660 using XDA

I havent noticed any differences between class 6 and class 10.

From personal experience, the speed of the card makes a big difference for the Desire because of all the app2sd games.
As someone mentioned before, brand and the store are also very important.
I bought a Lexar class 6 16GB and quite happy with it.
Make sure to do proper alignment on it.

StonePure said:
Hi. I found this thread be very informative in my seach for a new sd card.... I'm searching the net for a good deal 32g micro sdcard @ 4 class.
http://forum.xda-developers.com/showthread.php?t=1150369
Sent from my PC36100 using xda premium
Click to expand...
Click to collapse
I was thinking of this link coming into this thread, it needs to be a forum-wide sticky. For a camera, a class 10 would most definitely be required. But for Android, there does not seem to be a consensus.
Good luck

you should buy a class 10 dude samsung or another

Go for a class 10. If you aim for sales and such, you can get one for the normal price of class 6 cards.

Related

A good memory card ???

Can anyone recommend a good priced 32gb card prefer class 6 or above
E=Mc2
leith51 said:
Can anyone recommend a good priced 32gb card prefer class 6 or above
E=Mc2
Click to expand...
Click to collapse
You beat me to it... I was gonna post a similar post... LOL
Actually if someone could point out the differences in the classes and which one is "recommended" on the DHD?? I would also like a 16Gig...
And how to check what class I have on the DHD now?
Cheers!
I can answer The class thing the higher the class the faster it reads and writes which it recommends nothing below a class 4 for hd video recording at present in got a 16gb class 6 works great just wanting more space
E=Mc2
And how do I know what class is my SD?
prateekgujral said:
And how do I know what class is my SD?
Click to expand...
Click to collapse
if you check on sdcard the is a number in a circle thats the class of sdcard
cattleprod said:
if you check on sdcard the is a number in a circle thats the class of sdcard
Click to expand...
Click to collapse
Its so small that I am unable to check LOL.. need glasses i guess..
prateekgujral said:
Its so small that I am unable to check LOL.. need glasses i guess..
Click to expand...
Click to collapse
haha sounds like you might need some but how to know what class it is.
if you want a good sd card get kingston but the not cheap but they can come back a live!! as awhile ago i flashed a rom and the kingston sdcard die on me...so left it a week try it and worked!!
it was like jesus lol
cattleprod said:
haha sounds like you might need some but how to know what class it is.
if you want a good sd card get kingston but the not cheap but they can come back a live!! as awhile ago i flashed a rom and the kingston sdcard die on me...so left it a week try it and worked!!
it was like jesus lol
Click to expand...
Click to collapse
yeah.. but in India its hard to find good cards as everything is duplicated easily..
prateekgujral said:
yeah.. but in India its hard to find good cards as everything is duplicated easily..
Click to expand...
Click to collapse
yeah true would make it harder to now if you getting real deal, probly only way to know your getting what you ask for is import from a decent website. but you can always test the class of sd card by it transfer speed on pc as a class 6 should be able to transfer at around 6mb/sec if im right. but can your pc read/write at 6mb/sec i know mine can't lol
I'm pretty sure mine does... an i7
*Sent from my HTC Desire HD
I have a 32gb class 4 and its perfect for everything, not noticed any slow-downs and HD recording is fine. I couldn't find any class 6 when I was looking but no regrets getting a 4, will transfer a mp3 album in a few seconds (if that's any measure). Cost me £56. It's by integral
Sent from my Desire HD using XDA App
leith51 said:
I can answer The class thing the higher the class the faster it reads and writes which it recommends nothing below a class 4 for hd video recording at present in got a 16gb class 6 works great just wanting more space
E=Mc2
Click to expand...
Click to collapse
The class shows the minimum read/write speed of the card as shown below
Rating Read (Mb/s) Write (MB/s) Class
13× 16.0 2 2
26× 32.0 4 4
40× 48.0 6 6
66× 80.0 10 10
It is possible that a Name brand class 6 card, could out perfom a no name class 10 card as the speeds are minimum, I would tend to avoid anything slower than class 4 as it MAY introduce lag involving SD read/write operations​
To those who have 32gb cards, what brands are they?
Contemplating between transcend and sandisk. transcend is a bit cheaper though. I just dont know anyone who can vouch for transcend.
I bought one from MyMemory.co.uk, just their own branded ones was about £52 class 4 couldn't be happier with it
Sent from my Desire HD using XDA App
HTC website for Desire HD specs says:
Expansion slot:
* microSD™ memory card (SD 2.0 compatible)
Click to expand...
Click to collapse
On looking up the official standards of MicroSD cards http://www.sdcard.org/developers/tech/sdhc/ it only talks about differences in speed ratings such as class 2, class 4 ect. So I assume that HTC are advertising the Desire HD as only supporting class 2 MicroSD cards. I would like to know if anyone can confirm if using the USB cable to transfer data to a PC is actually getting faster speeds using a higher class MicroSD card than class 2 standards?
HTC isn't saying that the DHD supports class 2 only it just doesn't specify. (the micro-sd 2.0 thing is completely different to what you're thinking about the 2.0 means it supports micro-SDHC not that it supports class 2 only. and about the speed difference, I have a class 2 8GB micro-SDHC and that writes at 2MB/s and reads at 4MB/s, a class 4 16GB that writes at 4MB/s and reads at 5MB/s, and finally a class 10 32GB that writes at 12MB/s and reads at 15MB/s. (All tested on my Desire HD) So there is a HUGE difference between classes 2 , 4 and 10 when copying through USB.
Hello,
what class 10 32GB do you have?
best regards huggy
It's a Kingston. I would tell you the model number but I chucked the rubbish away.
I bought a Toshiba 16gb class 4 and I am completely satisfacted in comparison with the stock (samsung) ! It's faster and more reliable !!!
wiseman95 said:
It's a Kingston. I would tell you the model number but I chucked the rubbish away.
Click to expand...
Click to collapse
Not surprised you chucked it away, Kingston Class 10's only go up to 16 GB lol

Recommended 32GB Speedy microSD?

What would you guys recommend as a speedy and stable 32GB microSD card for the Galaxy S 4G? I was looking at the Patriot LX Series on Newegg but the relatively poor reviews concern me.
Given the pricing at this time, I'd go with an 8 GB, Class 6 card and wait for prices to drop on even the 16 GB, Class 6
32 GB or Class 10? IMHO waaaay too expensive at this time. Are you really writing that much data that often? The read speeds of even the Class 2 card that the SGS4G shipped with is comparable to Class 6 cards.
I've had good luck with the Transcend cards -- Class 6, 8 GB ~$18, 16 GB ~$55
well I am down to about 3GB on my stock 16GB class 2 card so I am definitely looking at 32GB microsd cards only.
I am honestly not particularly concerned about the price and I'd be willing to pay up to $200 for one as long as it is fast and stable. My current class 2 card is quite slow when loading applications and when looking through things like my pictures gallery which is stored on the card as well.
Go to Pricegrabber's website and input the following part number - TS16GUSDHC6-P3
16GB Transcend microSDHC going for 125.00 Class 6 device I am getting it...
nycplayboy78 said:
Go to Pricegrabber's website and input the following part number - TS16GUSDHC6-P3
16GB Transcend microSDHC going for 125.00 Class 6 device I am getting it...
Click to expand...
Click to collapse
What does the -P3 buy you? The TS16GUSDHC6E card is only $55 at Amazon
Transcend's site doesn't suggest that there are tiered performance based on the suffix.
Yangorang said:
What would you guys recommend as a speedy and stable 32GB microSD card for the Galaxy S 4G? I was looking at the Patriot LX Series on Newegg but the relatively poor reviews concern me.
Click to expand...
Click to collapse
I was looking at that one too... Anyone know if that brand is any good i've never heard from them before...
i'm also looking into getting a 32GB sd card but i want fast and well 32GB... i dont mind if its costly but has to be good for the job...
Sent from my SGH-T959V using XDA App
Patriot is some of the best PC Ram and SSDHD's you can buy for PC's. So I would assume based on the fact it's similar tech that their microSD's would be of similar top notch quality.
heartspains88 said:
Patriot is some of the best PC Ram and SSDHD's you can buy for PC's. So I would assume based on the fact it's similar tech that their microSD's would be of similar top notch quality.
Click to expand...
Click to collapse
thanks for the info man... i didnt know that...
i give you a +1 because i cant find the thanks button on the app :!
Sent from my SGH-T959V using XDA App
gohere, I got one and it works good
I was lucky and just got a 16gb micro sd card from Radio Shack for 25$ yesterday. They seem to have the best sales so far.
http://www.amazon.com/Komputerbay-M...EEHI/ref=sr_1_8?ie=UTF8&qid=1307229858&sr=8-8
hows that?
Lower class means faster speeds or opposite?
Eric-1987 said:
Lower class means faster speeds or opposite?
Click to expand...
Click to collapse
lower is slower
How much slower? And do you know the class of the SD card that came with the evo?
Best Buy had the 16gb Class 10 card for 49.99...Is that really a best buy or is it a sham?
Transcend
Yangorang said:
What would you guys recommend as a speedy and stable 32GB microSD card for the Galaxy S 4G? I was looking at the Patriot LX Series on Newegg but the relatively poor reviews concern me.
Click to expand...
Click to collapse
I bought the Transcend 32GB Class 4 about 2 weeks ago and so far so good. It did about 4MB/s writing (upgraded from a Transcend 8GB class 6) while copying content from the older card (about 7GB of data). I watch movies from SD, move apps to SD, snap some picks and shoot videos without issues. This is all on a KG4 rom if that makes a difference.
If you are going to copy large files (like movies) all the time, a faster card might help but the Lexar's are dang expensive!
Hope this helps.
Mark
Go here : http://forum.xda-developers.com/showthread.php?p=15269669#post15269669 for a lot of useful information about 32 GB SD cards.
It seems for cellphones the sandisk 32 GB class 4 card seems to be the best performing for everyday use.
I hope this helps.
I have a Wintec class 10 and to be honest, its the way to go. Nothing beats the speed.
Just received my PNY 32gb class 10 the other day, and so far its blazing fast on Whitehawkx's Valhala ROM.
Sent from my SGH-T959V using xda premium
crackpot said:
Just received my PNY 32gb class 10 the other day, and so far its blazing fast on Whitehawkx's Valhala ROM.
Sent from my SGH-T959V using xda premium
Click to expand...
Click to collapse
Glad you went with the class 10! Its a win for sure. Do an SD benchmark test and you'll be amazed at the results.

[Q] Which MicroSD do you use??

Hi there, I just bought the Sensation and I started the research for a good Micro SD to use on it. On my previous phone (the Desire I have in my sign) I had a Sandisk 8GB Class 6 which never gave me any prob, but I'm reading here and there that with the size of the new ROMs having less than 16Gb would mean meeting a few problems when it comes to have more than a couple of nandroid on your SD, plus video & pics in HD require more & more space.....SO: I wanted to get a 16GB class 6 or 10 but I'm having quite a hard time to find a Sandisk one (I'm wondering if Sandisk even produce something like that...) and at the same time I read here & there in various forum people having some trouble with non-sandisk memory card
At this point I thought to ask all of you which card do you use and if and what problems did you experience with it(?!?)
Tried to use the search tool but couldn't find out much out of this subject...
P.S. If you choose "Other" in the poll please then specify with a post which one you use exactly!
I have the Lexar 32 GB class 10. It works perfectly fine.
Sandisk 32gb, class 4, its perfect
SanD ftw! Haha
PNY 32GB Class 10 working flawlessly.
So it looks like SanDisk wins once again anybody else?
the Kingston 32gb class 4.
Works perfect
meteor999 said:
Sandisk 32gb, class 4, its perfect
Click to expand...
Click to collapse
Same one I have
i have a 32gb class 2 on oreder from ebay for $20. Does anyone think i may have isues being a class 2?
johnnywhojr said:
i have a 32gb class 2 on oreder from ebay for $20. Does anyone think i may have isues being a class 2?
Click to expand...
Click to collapse
Probably not. mmmmmaybe some choppiness on hd video playback, but more than likely the only thing you'll notice is it takes longer to transfer large files too and from the card.
ProximaC said:
Probably not. mmmmmaybe some choppiness on hd video playback, but more than likely the only thing you'll notice is it takes longer to transfer large files too and from the card.
Click to expand...
Click to collapse
Great to know! thank you!
Scandisk 16gb class 4
Adata 8gb class 6
Sent from my HTC Sensation.
Mmmmmm...still looks like Sandisk is winning with more then half of the memory cards in use out there!
But nobody told us any bad experience so far with any memory card....anybody there who lost everything due to mem failure or who wasn't able to install a new Rom due to his cheap memory card??
Patriot Class 10 16gb
Sent from my HTC Sensation 4G using XDA App
I currently have a Kingston 8GB Class 4 running and so far no issues, been using it in my previous phone and works like a charm. I have also ordered a Memorette 32GB Class 10 from ebay, but don't know if it comes or not as there were some problems after checkout. Hope it comes in the end so I have a lot of space for all the content I would like on my Sensation
SanDisk 16GB class 4
6MB/s write, 20MB/s read. Works brilliantly, and pretty cheap off eBay.
Sent from my HTC Sensation Z710e using xda premium
I used Scandisk 8GB class 4. What would you recommend?
Using 32GB class 4 sandisk. Satisfied with it and it hasn't gave me any problems. Pretty pricey though.
Sent from my HTC Sensation Z710e using Tapatalk
I use Lexar 32GB Class 10, I bought it because of the price and the card is great, the speeds are real

Samsung 32GB Class 10 or Sandisk 32GB Class 4

I'm very tempted to get one of these cards. I did search and read a lot about the sandisk card. But there isn't much about the samsung class 10 card. Can someone please shed some light on it.
save yourself some cash and get a samsung 32gb class 6,
Dacoit said:
I'm very tempted to get one of these cards. I did search and read a lot about the sandisk card. But there isn't much about the samsung class 10 card. Can someone please shed some light on it.
Click to expand...
Click to collapse
I try both on my Sensation....i think Samsung is just a little bit better but noothing special.
samsung or sandisk
you should look at the sandisk mobile ultra 32gb class 6.
not the cheapest card,but I would say the undisputted class six speed demon.
take the class 4 one, you dont need the speed of a class 10 on the phone it's just wasting money
Have a search for one of the SD card threads which should have detailed benchmark data in. Maximum read and write speads are not the only important factors. If you mean this one http://www.amazon.co.uk/Samsung-MB-MSBGAEU-32GB-Class-Micro/dp/B005FY61EK, I can confirm it works well. I benchmarked mine before I put anything on it and, in megabytes per second it scored:
Seq Read: 20.06 Seq Write: 12.10
512k Read: 19.82 512k Write: 11.86
4k Read: 4.777 4k Write: 1.270
4k QD32 Read: 4.917 4k QD32 Write: 1.271
The 4k read and write values are apparently very important for us as the phone will read and write lots of small files to the SD.
These speeds ECLIPSE my Sandisk 16GB class 4 card and explain why Android on my old HD2 was slow whenever I put apps n stuff on the SD card. Hope this helps you make your mind up. Try and find that thread : )
I'm looking at the Sandisk Mobile Ultra class 6. I think I will go for that. Anyone's got one yet?
Dacoit said:
I'm looking at the Sandisk Mobile Ultra class 6. I think I will go for that. Anyone's got one yet?
Click to expand...
Click to collapse
Saw this in a shop today and thought of getting it but it's a waste of money really. I think I'll just go for the Class 4 or 6 32 GB sandisk card.
Hello there!
isn't a class 10 better for multi-booting a rom from an sd-card? I think both brands are pretty good
I got the class 10 Samsung the ouzo posted the link for, blazing fast & apparently waterproof, so if your phone ends up in a beer glass (happens more often than I'd like) the data is safe
Sent from my HTC Sensation XE with Beats Audio Z715e using xda premium
It is always better to buy the fastest card. My choice would be Samsung Class 10
Yep. Go for speed first.
16gb class 4
I've been using a 16gb class 4 sandisk and it works exactly as stated. Usually writes between 4-5 MB/s and reads between 20-30 MB/s. Its been very consistant and I've had no problems. If your looking for a dependable card id go with the sandisk.
I have one of the original 32gb SanDisk Class 2 MicroSDHC cards and a PNY Class 10 32gb
So far I haven't noticed a difference, Other than I filled the SanDisk already and got the PNY so I could archive the SanDisk
Dacoit said:
I'm very tempted to get one of these cards. I did search and read a lot about the sandisk card. But there isn't much about the samsung class 10 card. Can someone please shed some light on it.
Click to expand...
Click to collapse
dude have u bought sandisk 32gb class 6...i have to buy that card...what are ur reveiews about that card..??
Not sure who's in the US here but I just bought this one from best buy for 34.99 it's going up in price now. And it's from a legit store. They have a lot of other ones for sale cheap online.
SanDisk mobile ultra 32GB class 6
The 64GB is also on sale last time I checked.
http://m.bestbuy.com/m/e/product/detail.jsp?skuId=3695074&pid=1218427115873
Sent from my HTC Sensation 4G with Beats Audio using Tapatalk 2
I got the Samsung 32gb and must say class 10 over 4 anyday
Does the clad of your memory card affect how full hd videos record ?? I'm using a class 4 and it sometimes freezes during playback then picks back up would a class 10 eliminate this.
Sent from my HTC Sensation 4G using xda premium
OreoBoyVa said:
Does the class of your memory card affect how full hd videos record ?? I'm using a class 4 and it sometimes freezes during playback then picks back up would a class 10 eliminate this.
Sent from my HTC Sensation 4G using xda premium
Click to expand...
Click to collapse
Didn't mean to quote my self...
Sent from my HTC Sensation 4G using xda premium

Which micro SD card is better?

Hi!
I am deciding between these 2 micro SD card's. Please tell me which one of these 2 is better.
1) PNY 8GB MicroSD Class 4 Memory Card
2) RetailPlus 8GB Class 10 microSD Card (MEMS8GC10)
Thanks
You don't have to judge between them. Both will be awesome somehow. Anyway I vote for PNY.
Sent from my GT-I9100 using xda app-developers app
Is there a big difference between Class 4 and Class 10?
Sent from my SGH-T989D using xda app-developers app
Well it really depends on how much memory you want in my opnion the more the better also how much can your device hold. Some device only go up to 32gb, I love my 64 gb sandisk class 10 running
Sent from my SPH-L900 using xda app-developers app
curryfishes said:
Hi!
I am deciding between these 2 micro SD card's. Please tell me which one of these 2 is better.
1) PNY 8GB MicroSD Class 4 Memory Card
2) RetailPlus 8GB Class 10 microSD Card (MEMS8GC10)
Thanks
Click to expand...
Click to collapse
Class 10 will be much faster, minimum 10Mb per second write speed. (If it really is a class 10)
I got a 16 GB Class 4 SanDisk microSD for around $20 or $30 while on sale. I find that you can often find these better known brands on sale quite often. Check weekly flyers of stores nearby.
Personally, I got mine from Tiger Direct.
EDIT: As for your two options, I do not need the speed that a class 10 microSD has to offer. I would just go with whichever is known to be more reliable. Exactly why I would opt to find a SanDisk on sale.
Class 10 is faster for read/write data.
Sent from my GT-N700 using xda app-developers app
Class 10 MicroSd is far better
Class 10 MicroSd is far better as it is also recommended for RAM expander app
Odp: Which micro SD card is better?
Class determine only write speed not read. If you are using card simple as storage you dont really need class 10 but ofc copying files will be faster. Class 10 is recomended for making hi res movies, gaming or ( as mentioned above) swap. Personally i recomend Samsung class 10 cards, no problems and nice speed.
i would say go with class 10 it is the faster out of the 2
as it is stated above if u use it for swap etc., a high speed card would be very handy, but as for just storage i'd go for pny.. btw take a look at this topic for the speeds: http://forum.xda-developers.com/showthread.php?p=15269669#post15269669

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