Samsung Micro SDHC 32GB Class 10, $34.99 (1.99 shipping) - Epic 4G Accessories

This is on again today, 4/6, at Frys and as of posting time is still available for shipping.
It benchmarked very well here:
Samsung 32GB Class 10 MicroSDHC out of the box, FAT32
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 18.656 MB/s
Sequential Write : 12.039 MB/s
Random Read 512KB : 18.604 MB/s
Random Write 512KB : 11.846 MB/s
Random Read 4KB (QD=1) : 3.736 MB/s [ 912.2 IOPS]
Random Write 4KB (QD=1) : 1.167 MB/s [ 285.0 IOPS]
Random Read 4KB (QD=32) : 3.742 MB/s [ 913.6 IOPS]
Random Write 4KB (QD=32) : 1.164 MB/s [ 284.2 IOPS]
Test : 50 MB [L: 0.0% (0.0/29.2 GB)] (x5)
Date : 2012/01/31 18:58:35
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
Samsung 32GB Class 10 MicroSDHC formatted to NTSF
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 18.634 MB/s
Sequential Write : 11.578 MB/s
Random Read 512KB : 18.242 MB/s
Random Write 512KB : 10.131 MB/s
Random Read 4KB (QD=1) : 3.751 MB/s [ 915.8 IOPS]
Random Write 4KB (QD=1) : 1.159 MB/s [ 282.9 IOPS]
Random Read 4KB (QD=32) : 3.750 MB/s [ 915.6 IOPS]
Random Write 4KB (QD=32) : 1.163 MB/s [ 283.9 IOPS]
Test : 50 MB [L: 0.3% (0.1/29.2 GB)] (x5)
Date : 2012/01/31 19:09:10
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
1SaleADay 32GB Class 4 Sandisk MicroSDHC (Previously Purchased, fresh out of the box FAT32)
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 19.342 MB/s
Sequential Write : 6.944 MB/s
Random Read 512KB : 18.927 MB/s
Random Write 512KB : 1.674 MB/s
Random Read 4KB (QD=1) : 3.067 MB/s [ 748.9 IOPS]
Random Write 4KB (QD=1) : 1.382 MB/s [ 337.5 IOPS]
Random Read 4KB (QD=32) : 2.852 MB/s [ 696.2 IOPS]
Random Write 4KB (QD=32) : 1.210 MB/s [ 295.5 IOPS]
Test : 50 MB [L: 0.0% (0.0/29.7 GB)] (x5)
Date : 2011/10/10 21:06:22
OS : Windows 7 Ultimate Edition [6.1 Build 7600] (x64)
32GB Class 4 SanDisk MicroSDHC Card Purchased directly from Sandisk (used in android phone for several months, FAT32)
-----------------------------------------------------------------------
CrystalDiskMark 3.0.1 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 7.890 MB/s
Sequential Write : 4.685 MB/s
Random Read 512KB : 7.701 MB/s
Random Write 512KB : 4.504 MB/s
Random Read 4KB (QD=1) : 0.792 MB/s [ 193.4 IOPS]
Random Write 4KB (QD=1) : 0.896 MB/s [ 218.7 IOPS]
Random Read 4KB (QD=32) : 0.739 MB/s [ 180.5 IOPS]
Random Write 4KB (QD=32) : 1.030 MB/s [ 251.4 IOPS]
Test : 50 MB [L: 23.0% (6.8/29.7 GB)] (x5)
Date : 2011/10/10 21:40:44
OS : Windows 7 Ultimate Edition [6.1 Build 7600] (x64)
Click to expand...
Click to collapse

Nice, looks like a solid card

I ordered this exact card about a week ago for $29.99(1.99 shipping) from frys.com still waiting for it to get here though
Sent from my SPH-D700 using XDA

damn and I jsut ordered a random class 4 off amazon. D:

www.dhgate.com/wholesale
great prices

For those interested...
More info / links...
(At the time I was only looking for their "Plus Extreme Speed Series" version which tops out @ 16GB.)
=]

I work at frys . Was going to post this but you beat me to it. Everyone should just send me the money and a buck for shiping. I'll take it out of the package. Stick a 42cent stamp to it and mail it
Sent from my SPH-D700 using xda premium

Related

VSBenchmark 2007: Polaris vs. Wings

I thought i'd test the infamous AtiD3D.dll in a benchmark test.
VSBenchmark tests 5 sections: Graphics, Jpeg, Games, Sound and Other.
I won't go into the details of the program, if you wanna know, follow the link, download it and test it yourself.
Here are the benchmarks:
Polaris Benchmark without ATID3D.dll:
Graphics - 0967
Others - 1595
Jpeg - 1991
Games - 1093
Sound - 0851
Total: 1299
Polaris Becnhmark With ATID3D.dll:
Graphics - 1013
Others - 1750
Jpeg - 2146
Games - 1135
Sound - 0796
Total: 1368
Polaris With ATID3D.dll and without SRS WoW
Graphics - 1097
Others - 1881
Jpeg - 2328
Games - 1255
Sound - 0666
Total: 1445
Wings (S730) Becnhmark Without ATID3D.dll:
Graphics - 0996
Others - 1802
Jpeg - 2278
Games - 1227
Sound - 1029
Total: 1466
Wings (S730) With ATID3D.dll:
Graphics - 1058
Others - 1780
Jpeg - 2292
Games - 1209
Sound - 1044
Total: 1476
Notice the better performance of the Wings in ALL sections (especially sound for some weird reason)! The biggest difference between these devices is that the Polaris is a pocketpc phone and the Wings is a Smartphone. I'll run a couple more benches to be sure, because the scores seem to fluctuate somewhat.
Just so you know...
Ummm...
What does ATID3D.dll give you in everyday use?
Benchmark is good, but real life is something completely different...
Pre-Production Polaris
As shipped results:
Test1 1082
Test2 1713
Test3 2164
Test4 1211
Test5 0689
Overall 1371
My results (with SRS WoW):
Test 1 - 0978
Test 2 - 1667
Test 3 - 2065
Test 4 - 1101
Test 5 - 0811
Final score 1324
SKTools Benchmark:
Integer - 233,3561 Moves/25 usec
Floating point - 5,499 MWIPS
RAM access - 479 Speed index
Draw bitmaps - 720 Speed index
Main storage (write) - 10971,43 KB/sec
Main storage (read) - 11377,78 KB/sec
microSDHC (write) - 321,89 KB/sec
microSDHC (read) - 13100,21 KB/sec
File List - 793 Items/s
File List (microSDHC) - 3418 Items/s
SKTools loading - 3540 ms
Card - SanDisk 8GB microSDHC Class 4
Here are the results of the full test on my Polaris
Not very impressive comparing to the Qtek 9100... HTC have a lot of work to make this device using all the power of the Qualcomm Processor !
By the way, what is this ATID3D.DLL and how to implement it?
Hmm, i noticed a big drop when i removed the SRS WoW from my device. I'll reinstall it and do a new bench. See if it really helps.
My results
My results of HTC Polaris (with czech localization)
Test 1 Graphic: 1259
Test 2 Others: 2154
Test 3 JPEG: 2624
Test 4 Games: 1507
Test 5 Sound: 0580
Final Score: 1624

Storage card speed optimization – long-time & real-world tests. A MUST!

After having downloaded the latest Shadow of Legend beta, I’ve realized it has 9422 files and 424 directories. If you’ve followed my articles for more than a year, you may already know that this means really slow transfer rates to even the fastest cards. (For example, to a (cheap) 1 GByte Kingston SD card, formatted with the most storage-saving FAT32/512 format (and not using a backup FAT table to speed up operation), it took exactly 2:28 (h:mm) to transfer all these files. (Only to find out 14M was left free, which resulted in the immediate crashing of the updater program because there simply was no free storage to download updates to. The SoL web page should be updated and the 1+ GB storage requirement increased to at least 2GB so that others don't even try to copy it to an 1GB card.) If you’ve read my three-year-old, highly recommended article on optimizing storage card speeds, you may already know you can heavily decrease the time needed to transfer several thousand files to a card by using another file system.
Note that I will NOT explain all the stuff I’ve already elaborated on in the above-linked article once more. Read it so that you understand what I’m writing about, what tools you should use to format your cards with etc. This test is pretty much like the previous one, except that, of course, I’ve tested the latest high-capacity microSD cards to find out how they compare to each other. For real-world tests, I’ve benchmarked transferring 48 files residing in 18 directories to these cars. In addition, I’ve, instead of some meaningless desktop file transfer speed testings, I’ve run some real-world tests using my Canon IXUS 960IS (SD 950IS) 12 Mpixel camera in superfine mode, using continuous shooting. I use continuous shooting a lot when taking social photos so that I have several shots to select the best from; then, card writing speeds have a tremendous effect on the continuity and speed of shooting. In this respect, this test will be of real importance to people looking for the fastest possible card to be used in their (high-end – don’t forget low(er)-end cameras like that of HP simply can’t make use of the high speed of cards) digital cameras.
Symbian and BlackBerry users: note that this article is applicable to your operating systems too. It’s just that you won’t have access to the Windows Mobile apps to format your cards. However, you can do the same on your desktop. And, of course, you may also face the problem of having to copy to thousands of files to your card – or, for that matter, optimizing it for speed when used in a digital camera (or a desktop card reader).
(Note that I, generally, only take shots in fine mode only; then, the cards’ transfer speed doesn’t have that big an impact on the speed of taking photos in continuous mode as in Super Fine mode. The latter uses roughly twice the storage for shots than Fine mode.)
The cards I’ve tested (click the image for a higher-resolution one)
Now, let’s take a look at the results. In the first part, I only elaborate on the file creation speed. You’ll want to check this section out if you want to optimize your cards for file creation - but not necessarily massive, multi-Gigabyte file transfers; see the second section, the real-world camera tests, for that. Note that optimizing for file creation speed doesn’t necessarily result in being optimized for massive file transfers, as will also be shown in the camera tests.
Section 1 – optimizing strictly for file creation speed
Lower-capacity SD cards
2GB Connect3D:
FAT32 / 512 / -: 32s
FAT32 / 512 / +: 45s
FAT32 / 2k / +: 40s
FAT32 / 4k / +: 40s
FAT32 / 16k / +: 43s
FAT16 / 32k / +: 25s
FAT16 / 64k / +: 26s
FAT16 / 32k / -: 26s
FAT32 / 4k / -: 34s
Recommended: FAT16 / 32k for file creation speed (with or without backup); otherwise, FAT32 / 512 / - (12.5% slower).
1GB Kingston:
FAT32 / 512 / -: 23s
FAT32 / 512 / +: 32s
FAT16 / 16k / +: 9s
FAT16 / 32k / +: 16s
FAT16 / 32k / -: 9s
FAT16 / 16k / -: 8s
FAT32 / 4k / -: 20s
Recommended: FAT16 / 16k / - for speed; otherwise, FAT32 / 512/ - (280% slower)
1GB Sandisk:
FAT32 / 512 / -: 9s
FAT32 / 512 / +: 22s
FAT32 / 4k / +: 22s
FAT16 / 16k / +: 19s
FAT16 / 16k / -: 7s
Recommended: FAT16 / 16k / - for speed; otherwise, FAT32 / 512/ - (28% slower)
High(er)-capacity, higher-speed microSD cards:
SanDisk 2GB, no class given:
FAT32 / 512 / -: 4s
FAT32 / 512 / +: 11s
FAT32 / 4k / -: 5s
FAT16 / 32k / -: 5s
FAT16 / 32k / +: 10s
Recommended: FAT32 / 512 / - for both speed and capacity; backup FAT introduces at least a 100% speed hit
SanDisk 8G SDHC class 4
FAT32/32k/+: 4s
FAT32/32k/-: 4s
FAT32/4k/-: 4s
FAT32/512/-: 4s
Kingston 4G SDHC class 4
FAT32/4k/+: 24s
FAT32/4k/-: 11s
FAT32/512/-: 22s
FAT32/512/+: 29s
Optimal: FAT32/4k/-; backup FAT introduces 100% speed hit; 512byte is slow
Sandisk 256M miniSD:
FAT16 / 4k / -: 12s
FAT16 / 4k / +: 13s
FAT16 / 16k / -: 12s
FAT32 / 512 / -: 11s
FAT32 / 512 / +: 12s
Optimal: FAT32/512/-; other settings aren’t considerably worse, though
Section 2 - Camera tests
Shooting continuous images (the screen of an LCD monitor; this guarantees the output will consist of huge JPG files) for 2 minutes. I’ve tested the cards with the parameters optimized for file creation speed and for FAT32/32k/+ (the default mode the IXUS960 formats all cards to). The former is before and the latter is after the slash. I’ve also marked how many shots were taken in two minutes and how much storage they took. As an example, let’s take a look at the first row,
1GB Sandisk 82 shots (FAT16 / 16k / -) for 651,106k / 82 shots (default) for 669,843k
just below. The section before the slash,
1GB Sandisk 82 shots (FAT16 / 16k / -) for 651,106k
means the Canon took 82 shots, totaling 651106k, when using the FAT16 / 16k / - file system with the 1GB Sandisk SD card. Continuing with the part after the slash (/),
82 shots (default) for 669,843k
states (also) 82 shots have been taken with the default (Canon) FAT32/32k/+ file format, totaling, this time, 669843kbytes. (Note that we’re speaking of photos; this is why they aren’t of exactly the same size.)
Now, the results (SD and microSD; I haven't benchmarked the miniSD card in this test):
SD:
1GB Sandisk: 82 shots (FAT16 / 16k / -) for 651,106k / 82 shots (default) for 669,843k
1GB Kingston: 82 (FAT16 / 16k / -) for 630,179k / 79 (def) for 657,524k
2GB Connect3D: 51 (FAT16 / 32k / -) for 421,809k / 47 (def) for 415,823k
microSD:
Sandisk 2GB: 89 (FAT32 / 512 / - ; about 1-3s warm-up time) for 518.584k / 88 for 624,291k
Kingston 4GByte Class 4 SDHC: 128 (FAT32/4k/-) for 781,932k / 98 (FAT32/32k/+) for 703,071k. That is, in this case, the camera default is somewhat suboptimal.
Sandisk 8GB Class 4 SDHC: 95 (FAT32/512/-; takes 16 secs to check the card on every restart!!) for 797.178k / 142 (FAT32/32k/+) for 1,051,712k
As a rule of thumb, in most cases, the default file system is optimal when used with the Canon. (With for example the Kingston 4Gbyte Class 4 microSDHC, I’ve got somewhat better results in the other way around. It’s still about 34% worse than the Sandisk 8GB Class 4 results in the default mode, which is, incidentally, way better than the performance delivered by all the other, tested cards.) Of course, for pure file creation speed, you’ll want to look at the results in the first section and format your card(s) accordingly. Don’t forget the Canon, as has already been pointed out, uses a backup FAT, which results in, with some cards, even two or even three times worse performance when copying a large number of small files than without the backup FAT. Keep this in mind when transferring for example Shadow of Legend to your card.
Finally, note that if you use the, otherwise, most storage saving FAT32/ 512byte combo with really high-capacity cards, you may encounter slowdowns upon powering up the devices using the cards. For example, the Canon camera needs approximately 16 seconds (!!!) to gain access to the Sandisk 8GB microSDHC when formatted to this mode. With the 2GB Sandisk microSD, this warm-up time was about 1-3s secs. You’ll encounter the same issue with desktop card readers (you’ll need to wait that more(!) to gain access to the contents of the card) and, probably, even handhelds / handsets (if they do power down the card when suspending). This means you’ll need to carefully test whether heavily optimizing for storage results in huge slowdowns at startup / resuming your mobile device.

Class 6 Or Class 10

Hi ,
I have seen that many people recommend to buy a memory card with higher CLASS .
Than the card would work better with APP2SD ..
And because now android 2.2 have the function to save app to SD I think that I need to buy new memory card ..
I saw on ebay someone sell 16GB micro SDHC (Team) And 16GB micro SDHC (kingston) Class 10
Class 10 :
http://cgi.ebay.com/Kingston-16GB-m...emory_Cards&hash=item3a5ab5a134#ht_3698wt_911
Class 6 :
http://cgi.ebay.com/16GB-16G-microS...ge_Internal&hash=item3a56afaa9f#ht_3090wt_911
How do I know if it fake or real , What I need to tak Class 10 Or Class 6 .
The price of memory card CLASS 10 expensive, it really is worth the price?
Thanks a lot
Neither - get a good quality class 2 or 4 (e.g. Sandisk) and you will be fine.
Regards,
Dave
If I will buy 16GB class 2 SanDisk ..
I Will buy from Israel It's very cheap there ..
16GB Class 2 Better Than Team 16GB Class 6 Or KingSton 16GB class 10 ?
I think that higer class better for APP2SD and If I will buy Class 2 It will be slow ..
About fake of memory card how I can to know if it's real or fake ?
Buying from Ebay is always a risk as there are lots of fakes about.
A good quality class 2 card can perform more than adequately, because the class doesn't tell you how fast your card is. It just tells you the minimum sustained write speed, but often a good card will surpass this minimum (see here for further details).
I have a 16gb Sandisk Class 2 card that has a sustained read speed of just over 20mb/s and a sustained write speed of 7.5mb/s (so faster than the class 6 minimums).
Prior to that, I had a 8gb Transcend Class 6 card, which had a slightly slower sustained read speed, and a sustained write speed of 14mb/s, so whilst it is faster writing, it isn't really that much faster when you consider that you won't actually be writing much compared to reading with Apps2DB.
In essence, you pays your money and you takes your choice, but in my experience there is little to be gained splashing out the cash on a sd card with a high Class rating.
Regards,
Dave
Ok thanks you .
I will think what to take sandisk class 2 or team class 6 or kingston class 10
Wait for more recommendations
I've got a Sandisk 16gb Class 2 which actually reads and writes faster than a Transcend 8gb class 6 that I have. Using apps2sd is no problem and perceivably just as fast as when the apps are installed to ROM.
shnizlon said:
Hi ,
I have seen that many people recommend to buy a memory card with higher CLASS .
Than the card would work better with APP2SD ..
And because now android 2.2 have the function to save app to SD I think that I need to buy new memory card ..
I saw on ebay someone sell 16GB micro SDHC (Team) And 16GB micro SDHC (kingston) Class 10
Class 10 :
http://cgi.ebay.com/Kingston-16GB-m...emory_Cards&hash=item3a5ab5a134#ht_3698wt_911
Class 6 :
http://cgi.ebay.com/16GB-16G-microS...ge_Internal&hash=item3a56afaa9f#ht_3090wt_911
How do I know if it fake or real , What I need to tak Class 10 Or Class 6 .
The price of memory card CLASS 10 expensive, it really is worth the price?
Thanks a lot
Click to expand...
Click to collapse
ok thanks . more recommendations ?
This is the only good recommendation. Buy a quality class 2 from a reliable source. It is more than enough.
Even if you use APPS2SD a quality class 2 sd card will have an absolute minimum of 2MB/s when writing.
My 16 GB class 2 sandisk has 3,5MB/s when writing and 7MB/s when reading. I can't see how such speeds can become a performance bottleneck.
never heard before bout class 10...
OK SanDisk Class 2 work fine with APP2SD . I hope ..
Ok , So I do not understand why a lot of people say higher class beter
shnizlon said:
OK SanDisk Class 2 work fine with APP2SD . I hope ..
Ok , So I do not understand why a lot of people say higher class beter
Click to expand...
Click to collapse
The general misconception is that the class of an SD card measures how fast it is (i.e. its top speed) which is incorrect because it tells you nothing about the actual top speed of the card. It just:
measures the minimum write speeds based on "the best fragmented state where no memory unit is occupied"
Click to expand...
Click to collapse
It is really designed to guarantee a certain level of performance with digital camcorders so that any video captured on the card is recorded at an even, sustained rate with no dropped frames, but even then it only applies to an unfragmented card.
Apps2SD will not tax an SD card in this manner anyway, and once you've installed an app there will be far more reading from the EXT3/4 partition than there is writing. This is probably still true even if you move the Dalvik cache and /data/data partition.
Regards,
Dave
Ok . thanks .
Now someone else say me when I will try to open or install game or app more than 2MB to memory card with class 2 it's take a lot of time
shnizlon said:
Ok . thanks .
Now someone else say me when I will try to open or install game or app more than 2MB to memory card with class 2 it's take a lot of time
Click to expand...
Click to collapse
Anecdotal stories like this tell us nothing because there's no information about the actual card being used and/or the application involved.
I've already proved to *myself* that my 16gb class 2 card reads just as quickly as my 8gb class 6 card. If *you* think buying a class 6 is going to make you happier, buy one.
Regards,
Dave
Ok Dave thank yo a lot I will buy sandisk 16GB Class 2
I saw now SanDisk Micro SD Mobile Ultra 16GB Class 4 ..
This is a good memory card ?
Whats better :
Kingston 16GB Class 10
Or
SanDisk Mobile Ultra 16GB Class 4
Kingston : 100$ with shipping
SanDisk : 80$-(90$ with shipping)
Same discussion on Modaco.
I'll post the same benchmarks on the cards I own that I posted there as a point of reference.
All tests performed using Crystal DiskMark 3.0 x64
Results below:
MicroSD - 4GB Class 2 - Samsung (Bundled with HTC Desire)
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 14.880 MB/s
Sequential Write : 5.159 MB/s
Random Read 512KB : 14.483 MB/s
Random Write 512KB : 0.754 MB/s
Random Read 4KB (QD=1) : 2.758 MB/s [ 673.2 IOPS]
Random Write 4KB (QD=1) : 0.026 MB/s [ 6.2 IOPS]
Random Read 4KB (QD=32) : 2.767 MB/s [ 675.5 IOPS]
Random Write 4KB (QD=32) : 0.025 MB/s [ 6.1 IOPS]
Test : 100 MB [E: 2.9% (107.8/3751.0 MB)] (x3)
Date : 2010/05/18 21:56:26
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
MicroSD - 16GB Class 10 - Kingston
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 19.300 MB/s
Sequential Write : 11.116 MB/s
Random Read 512KB : 19.068 MB/s
Random Write 512KB : 1.457 MB/s
Random Read 4KB (QD=1) : 3.170 MB/s [ 773.8 IOPS]
Random Write 4KB (QD=1) : 0.013 MB/s [ 3.1 IOPS]
Random Read 4KB (QD=32) : 3.112 MB/s [ 759.9 IOPS]
Random Write 4KB (QD=32) : 0.024 MB/s [ 6.0 IOPS]
Test : 100 MB [E: 0.0% (0.0/15.1 GB)] (x3)
Date : 2010/05/16 21:44:29
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
MicroSD - 8GB Class 4 - SanDisk
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 19.762 MB/s
Sequential Write : 12.912 MB/s
Random Read 512KB : 19.533 MB/s
Random Write 512KB : 3.389 MB/s
Random Read 4KB (QD=1) : 4.498 MB/s [ 1098.2 IOPS]
Random Write 4KB (QD=1) : 0.037 MB/s [ 8.9 IOPS]
Random Read 4KB (QD=32) : 4.536 MB/s [ 1107.5 IOPS]
Random Write 4KB (QD=32) : 0.039 MB/s [ 9.6 IOPS]
Test : 100 MB [E: 81.5% (6334.7/7771.3 MB)] (x3)
Date : 2010/05/16 22:28:45
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
SD Card - 16GB Class 4 - Sandisk
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 17.621 MB/s
Sequential Write : 17.160 MB/s
Random Read 512KB : 16.921 MB/s
Random Write 512KB : 2.558 MB/s
Random Read 4KB (QD=1) : 3.943 MB/s [ 962.6 IOPS]
Random Write 4KB (QD=1) : 0.025 MB/s [ 6.1 IOPS]
Random Read 4KB (QD=32) : 4.002 MB/s [ 977.1 IOPS]
Random Write 4KB (QD=32) : 0.025 MB/s [ 6.1 IOPS]
Test : 1000 MB [E: 0.0% (0.0/15.2 GB)] (x5)
Date : 2010/05/16 21:16:58
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Then SanDisk Mobile Ultra 16GB Class 4 better
Abra_Cadabra said:
Same discussion on Modaco.
I'll post the same benchmarks on the cards I own that I posted there as a point of reference.
All tests performed using Crystal DiskMark 3.0 x64
Results below:
MicroSD - 4GB Class 2 - Samsung (Bundled with HTC Desire)
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 14.880 MB/s
Sequential Write : 5.159 MB/s
Random Read 512KB : 14.483 MB/s
Random Write 512KB : 0.754 MB/s
Random Read 4KB (QD=1) : 2.758 MB/s [ 673.2 IOPS]
Random Write 4KB (QD=1) : 0.026 MB/s [ 6.2 IOPS]
Random Read 4KB (QD=32) : 2.767 MB/s [ 675.5 IOPS]
Random Write 4KB (QD=32) : 0.025 MB/s [ 6.1 IOPS]
Test : 100 MB [E: 2.9% (107.8/3751.0 MB)] (x3)
Date : 2010/05/18 21:56:26
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
MicroSD - 16GB Class 10 - Kingston
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 19.300 MB/s
Sequential Write : 11.116 MB/s
Random Read 512KB : 19.068 MB/s
Random Write 512KB : 1.457 MB/s
Random Read 4KB (QD=1) : 3.170 MB/s [ 773.8 IOPS]
Random Write 4KB (QD=1) : 0.013 MB/s [ 3.1 IOPS]
Random Read 4KB (QD=32) : 3.112 MB/s [ 759.9 IOPS]
Random Write 4KB (QD=32) : 0.024 MB/s [ 6.0 IOPS]
Test : 100 MB [E: 0.0% (0.0/15.1 GB)] (x3)
Date : 2010/05/16 21:44:29
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
MicroSD - 8GB Class 4 - SanDisk
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 19.762 MB/s
Sequential Write : 12.912 MB/s
Random Read 512KB : 19.533 MB/s
Random Write 512KB : 3.389 MB/s
Random Read 4KB (QD=1) : 4.498 MB/s [ 1098.2 IOPS]
Random Write 4KB (QD=1) : 0.037 MB/s [ 8.9 IOPS]
Random Read 4KB (QD=32) : 4.536 MB/s [ 1107.5 IOPS]
Random Write 4KB (QD=32) : 0.039 MB/s [ 9.6 IOPS]
Test : 100 MB [E: 81.5% (6334.7/7771.3 MB)] (x3)
Date : 2010/05/16 22:28:45
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
SD Card - 16GB Class 4 - Sandisk
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 17.621 MB/s
Sequential Write : 17.160 MB/s
Random Read 512KB : 16.921 MB/s
Random Write 512KB : 2.558 MB/s
Random Read 4KB (QD=1) : 3.943 MB/s [ 962.6 IOPS]
Random Write 4KB (QD=1) : 0.025 MB/s [ 6.1 IOPS]
Random Read 4KB (QD=32) : 4.002 MB/s [ 977.1 IOPS]
Random Write 4KB (QD=32) : 0.025 MB/s [ 6.1 IOPS]
Test : 1000 MB [E: 0.0% (0.0/15.2 GB)] (x5)
Date : 2010/05/16 21:16:58
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Click to expand...
Click to collapse
Hi! Which model is that Sandisk 16GB Class 4 ??
I've got a Sandisck 8GB Class 6 and those are my result of the benchmark:
Sequential Read : 14.360 MB/s
Sequential Write : 3.070 MB/s
Random Read 512KB : 14.271 MB/s
Random Write 512KB : 0.731 MB/s
Random Read 4KB (QD=1) : 1.733 MB/s [ 423.2 IOPS]
Random Write 4KB (QD=1) : 0.201 MB/s [ 49.1 IOPS]
Random Read 4KB (QD=32) : 1.735 MB/s [ 423.6 IOPS]
Random Write 4KB (QD=32) : 0.173 MB/s [ 42.1 IOPS]
Test : 50 MB [F: 0.0% (0.0/7049.8 MB)] (x1)
Date : 2010/06/03 17:41:39
OS : Windows 7 Ultimate Edition [6.1 Build 7600] (x86)
SanDisk Mobile Ultra 16GB Class 4
Note in my post above that the last card - Sandisk 16GB Class 4 is a standard SD Card (Not Micro-SD). It's the one I use on my camera. Just benchmarked it as a reference.
The first three are MicroSD.

32 GB Samsung UHS-1 Class 6 Card Tested and Working

Both cards Benched on my kingston mobilelite G3 card reader which is usb3 but my motherboard is a P35t-DQ6 intel q9650 cpu so limited to usb2 speeds.
The 32gb UHS-1 class 6 card is considerably faster than the 16gb class 10 card i was using before.
both cards work fine in the i9000.
Samsung 16GB Class 10 Micro SD Card
Sequential Read : 21.723 MB/s
Sequential Write : 11.185 MB/s
Random Read 512KB : 19.639 MB/s
Random Write 512KB : 0.897 MB/s
Random Read 4KB (QD=1) : 3.027 MB/s [ 739.0 IOPS]
Random Write 4KB (QD=1) : 0.147 MB/s [ 35.8 IOPS]
Random Read 4KB (QD=32) : 2.771 MB/s [ 676.4 IOPS]
Random Write 4KB (QD=32) : 0.196 MB/s [ 47.8 IOPS]
Test : 100 MB [E: 0.0% (0.0/14.9 GB)] (x1)
Date : 2013/02/06 21:12:03
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
---------------------------------------------------------------
Samsung 32GB Class 6 UHS-1 Micro SD card
Sequential Read : 37.109 MB/s
Sequential Write : 20.103 MB/s
Random Read 512KB : 34.991 MB/s
Random Write 512KB : 16.923 MB/s
Random Read 4KB (QD=1) : 4.670 MB/s [ 1140.2 IOPS]
Random Write 4KB (QD=1) : 2.232 MB/s [ 544.9 IOPS]
Random Read 4KB (QD=32) : 5.185 MB/s [ 1265.8 IOPS]
Random Write 4KB (QD=32) : 2.125 MB/s [ 518.8 IOPS]
Test : 100 MB [G: 0.0% (0.0/29.2 GB)] (x1)
Date : 2013/03/25 19:53:43
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
---------------------------------------------------------------

Virtual memory, or apps off SD card?

I'm interested in expanding my phone's RAM because I've noticed I run enough apps that it goes slow.
It has 1.5 GB memory, and 5 GB HDD.
I have an option of buying a 64 GB micro SDXC card. I want to know the best write speed for it if I intend to use it for virtual memory, IF using virtual memory via SWAP is even preferable to running apps directly off the SD card.
Here are the phone specs:
RAM: 4700 mb/s
Internal memory: 59 mb/s (read), 24 mb/s (write)
sd card: 60 mb/s wite: 24 mb/s
So I'm thinking, any SD card I get is going to be slower than real RAM, but if I get the cards that read/write 90 mb/s and 80 mb/s, that should be far superior to what I would get off the internal SD card, no?
Also, if I have files on the external SD while using it for virtual memory, will that mess things up?

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