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True speed of flash storage

Posted By PlaneMan 4 Years Ago
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PlaneMan
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*Edit*
All the results can be found on here in the .xls file updated periodically by wasbit. 
*Edit*





A post by Slippy in the cheap thumb drive thread (last post here) got me thinking.
Just how fast is flash storage?

To try and find out I gathered up a selection of flash storage I have lying around (mostly USB flash drives) and ran CrystalDiskMark 3.0 on them.
Size ranges from 1GB to 16GB and cost from just over £1 to about £25.

All tests were done with the 1000MB setting apart from the one with the ***** either side as the formatted size wasn't large enough, so that was run using 500MB.

The results weren't what I was expecting. At all.
The results follow. (Sorry for the size but I wanted to be thorough)

-----------------------------------------------------------------------
CrystalDiskMark 3.0 (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 : 16.308 MB/s
Sequential Write : 5.911 MB/s
Random Read 512KB : 16.085 MB/s
Random Write 512KB : 1.413 MB/s
Random Read 4KB (QD=1) : 3.856 MB/s [ 941.5 IOPS]
Random Write 4KB (QD=1) : 0.015 MB/s [ 3.6 IOPS]
Random Read 4KB (QD=32) : 4.139 MB/s [ 1010.4 IOPS]
Random Write 4KB (QD=32) : 0.015 MB/s [ 3.7 IOPS]

Test : 1000 MB [E: 0.0% (0.0/3815.5 MB)] (x5)
Date : 2010/09/24 11:26:26
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Verbatim PinStripe 4GB



Sequential Read : 18.431 MB/s
Sequential Write : 8.571 MB/s
Random Read 512KB : 18.610 MB/s
Random Write 512KB : 2.401 MB/s
Random Read 4KB (QD=1) : 6.327 MB/s [ 1544.6 IOPS]
Random Write 4KB (QD=1) : 0.010 MB/s [ 2.4 IOPS]
Random Read 4KB (QD=32) : 6.378 MB/s [ 1557.0 IOPS]
Random Write 4KB (QD=32) : 0.010 MB/s [ 2.5 IOPS]

Test : 1000 MB [E: 0.9% (66.1/7634.5 MB)] (x5)
Date : 2010/09/24 12:13:09
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Kingston DataTraveler 8GB




Sequential Read : 19.335 MB/s
Sequential Write : 4.519 MB/s
Random Read 512KB : 19.147 MB/s
Random Write 512KB : 2.058 MB/s
Random Read 4KB (QD=1) : 5.215 MB/s [ 1273.2 IOPS]
Random Write 4KB (QD=1) : 0.029 MB/s [ 7.1 IOPS]
Random Read 4KB (QD=32) : 7.733 MB/s [ 1887.8 IOPS]
Random Write 4KB (QD=32) : 0.029 MB/s [ 7.0 IOPS]

Test : 1000 MB [E: 18.3% (698.8/3816.0 MB)] (x5)
Date : 2010/09/24 13:19:40
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Lexar JumpDrive FireFly 4GB



***** Sequential Read : 19.338 MB/s *****
Sequential Write : 5.421 MB/s
Random Read 512KB : 19.234 MB/s
Random Write 512KB : 2.454 MB/s
Random Read 4KB (QD=1) : 4.753 MB/s [ 1160.4 IOPS]
Random Write 4KB (QD=1) : 0.035 MB/s [ 8.5 IOPS]
Random Read 4KB (QD=32) : 4.989 MB/s [ 1218.1 IOPS]
Random Write 4KB (QD=32) : 0.036 MB/s [ 8.8 IOPS]

Test : 500 MB [E: 0.0% (0.0/973.5 MB)] (x5)
Date : 2010/09/25 8:54:03
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
The real Sandisk cruzer micro 1GB





***** Sequential Read : 20.891 MB/s *****
Sequential Write : 4.600 MB/s
Random Read 512KB : 20.836 MB/s
Random Write 512KB : 2.111 MB/s
Random Read 4KB (QD=1) : 7.612 MB/s [ 1858.3 IOPS]
Random Write 4KB (QD=1) : 0.030 MB/s [ 7.3 IOPS]
Random Read 4KB (QD=32) : 7.944 MB/s [ 1939.4 IOPS]
Random Write 4KB (QD=32) : 0.030 MB/s [ 7.4 IOPS]

Test : 500 MB [E: 0.0% (0.0/950.0 MB)] (x5)
Date : 2010/09/24 13:55:07
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Aria super special swivel 1GB




Sequential Read : 11.133 MB/s
Sequential Write : 4.763 MB/s
Random Read 512KB : 10.858 MB/s
Random Write 512KB : 1.488 MB/s
Random Read 4KB (QD=1) : 2.010 MB/s [ 490.7 IOPS]
Random Write 4KB (QD=1) : 0.014 MB/s [ 3.4 IOPS]
Random Read 4KB (QD=32) : 4.811 MB/s [ 1174.4 IOPS]
Random Write 4KB (QD=32) : 0.014 MB/s [ 3.4 IOPS]

Test : 1000 MB [E: 35.3% (688.4/1949.4 MB)] (x5)
Date : 2010/09/24 14:42:56
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
Aria super special with cap 2GB




Sequential Read : 20.678 MB/s
Sequential Write : 5.811 MB/s
Random Read 512KB : 20.361 MB/s
Random Write 512KB : 2.481 MB/s
Random Read 4KB (QD=1) : 4.411 MB/s [ 1076.8 IOPS]
Random Write 4KB (QD=1) : 0.035 MB/s [ 8.5 IOPS]
Random Read 4KB (QD=32) : 4.938 MB/s [ 1205.7 IOPS]
Random Write 4KB (QD=32) : 0.036 MB/s [ 8.8 IOPS]

Test : 1000 MB [E: 37.4% (1436.4/3835.8 MB)] (x5)
Date : 2010/09/24 15:47:16
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
SanDisk SDHC class 4 4GB




Sequential Read : 21.780 MB/s
Sequential Write : 3.784 MB/s
Random Read 512KB : 21.675 MB/s
Random Write 512KB : 1.665 MB/s
Random Read 4KB (QD=1) : 4.679 MB/s [ 1142.3 IOPS]
Random Write 4KB (QD=1) : 0.024 MB/s [ 6.0 IOPS]
Random Read 4KB (QD=32) : 5.479 MB/s [ 1337.5 IOPS]
Random Write 4KB (QD=32) : 0.025 MB/s [ 6.0 IOPS]

Test : 1000 MB [E: 0.0% (0.0/16.0 GB)] (x5)
Date : 2010/09/24 16:39:51
OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)
e-bay cheapo 16 GB


Enjoy the reading. BigGrinw00t


Edited due to numptyness. Tongue


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Edited
5 Months Ago by PlaneMan
Slipstreem
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Thanks for the info. I'll be having a play with a 16GB Class 10 SDHC card in relation to different formatting regimes and different Windows caching settings soon, so I'll post my findings here if that's OK. Smile



Cheers, Slipstreem. Cool


Phoenix III - Win7 Professional 64-bit, AMD Athlon II X3 450 OCed to 3.75GHz (250x15 @1.45V) with CoolerMaster Hyper TX3 HS (with 2x Arctic Cooling F9 PWM fans in push-pull)  on ASRock N68C-S UCC mobo, 2x 2GB Crucial DDR2-800 (5,5,5,15,2T @DDR833 @1.9V), ASUS EAH4890 1GB DDR5 graphics card OCed to 1GHz GPU & 4GHz RAM. Powered by CoolerMaster GX 650W PSU.

Sylvester III - Win7 Ultimate 64-bit on Intel X25-V 40GB SSD, Intel C2D E7500 OCed to 3.9GHz (390x10 @1.45V)
with ACF7Pro HSF  on ASUS P5E Ai Lifestyle mobo, 2x 2GB OCZ Reaper DDR2-800 (4,4,4,12,2T @DDR780 @2.1V), PowerColor AMD HD6850 graphics card OCed to 825MHz GPU & 4.7GHz RAM. Powered by CoolerMaster GX 650W PSU.

Tweety - Storage Options Scroll Essential 7" Tablet PC
running Android Gingerbread 2.3.3 with Lexar 32GB Class10 microSDHC card.


PlaneMan
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Slipstreem (24/09/2010)
Thanks for the info. I'll be having a play with a 16GB Class 10 SDHC card in relation to different formatting regimes and different Windows caching settings soon, so I'll post my findings here if that's OK. Smile



Cheers, Slipstreem. Cool






No. WinkTonguew00t





Of course it is, I was hoping that others would chip in. Cool


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Nice one nitro.

The more info we have the better equipped we all are to buy the right flash storage.


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nitrowing
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The 8GB Super Talent is available up to 32GB and is advertised as up to 30MB/s (as mine delivers) and they're a nice bit of kit - you can get a gold plated one for your gf for not much extra. I've had mine for 3 years now.

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Well, no amount of messing around with different formatting standards, allocation unit sizes, or Windows caching settings yielded any difference in performance at all, but here it is anyway...







I'm happy with it for £22 delivered. Smile



Cheers, Slipstreem. Cool


Phoenix III - Win7 Professional 64-bit, AMD Athlon II X3 450 OCed to 3.75GHz (250x15 @1.45V) with CoolerMaster Hyper TX3 HS (with 2x Arctic Cooling F9 PWM fans in push-pull)  on ASRock N68C-S UCC mobo, 2x 2GB Crucial DDR2-800 (5,5,5,15,2T @DDR833 @1.9V), ASUS EAH4890 1GB DDR5 graphics card OCed to 1GHz GPU & 4GHz RAM. Powered by CoolerMaster GX 650W PSU.

Sylvester III - Win7 Ultimate 64-bit on Intel X25-V 40GB SSD, Intel C2D E7500 OCed to 3.9GHz (390x10 @1.45V)
with ACF7Pro HSF  on ASUS P5E Ai Lifestyle mobo, 2x 2GB OCZ Reaper DDR2-800 (4,4,4,12,2T @DDR780 @2.1V), PowerColor AMD HD6850 graphics card OCed to 825MHz GPU & 4.7GHz RAM. Powered by CoolerMaster GX 650W PSU.

Tweety - Storage Options Scroll Essential 7" Tablet PC
running Android Gingerbread 2.3.3 with Lexar 32GB Class10 microSDHC card.


Edited
4 Years Ago by Slipstreem
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Noticeably faster than Class 6 w00t

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Hey PlaneMan,



Was just looking through the data in your first post and this one looks pretty sus:



Sequential Read : 61.227 MB/s

Sequential Write : 62.575 MB/s

Random Read 512KB : 28.471 MB/s

Random Write 512KB : 25.669 MB/s

Random Read 4KB (QD=1) : 0.393 MB/s [ 96.0 IOPS]

Random Write 4KB (QD=1) : 0.767 MB/s [ 187.2 IOPS]

Random Read 4KB (QD=32) : 0.600 MB/s [ 146.5 IOPS]

Random Write 4KB (QD=32) : 0.788 MB/s [ 192.4 IOPS]



Test : 1000 MB [C: 33.7% (50.2/149.0 GB)] (x5)

Date : 2010/09/24 13:29:43

OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)

SanDisk cruzer micro 1GB



Not saying you faked it, but could there be something up with CrystalMark? I always thought that USB 2.0 (Hi-speed) was limited to a theoretical 60 MB/s and an actual 40 MB/s because of the Start of Frame (SOF) packet overhead? Are you running USB 3.0?
Edited
4 Years Ago by Wiley
PlaneMan
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Wiley (25/09/2010)
Hey PlaneMan,



Was just looking through the data in your first post and this one looks pretty sus:



Sequential Read : 61.227 MB/s

Sequential Write : 62.575 MB/s

Random Read 512KB : 28.471 MB/s

Random Write 512KB : 25.669 MB/s

Random Read 4KB (QD=1) : 0.393 MB/s [ 96.0 IOPS]

Random Write 4KB (QD=1) : 0.767 MB/s [ 187.2 IOPS]

Random Read 4KB (QD=32) : 0.600 MB/s [ 146.5 IOPS]

Random Write 4KB (QD=32) : 0.788 MB/s [ 192.4 IOPS]



Test : 1000 MB [C: 33.7% (50.2/149.0 GB)] (x5)

Date : 2010/09/24 13:29:43

OS : Windows 7 Home Premium Edition [6.1 Build 7600] (x64)

SanDisk cruzer micro 1GB



Not saying you faked it, but could there be something up with CrystalMark? I always thought that USB 2.0 (Hi-speed) was limited to a theoretical 60 MB/s and an actual 40 MB/s because of the Start of Frame (SOF) packet overhead? Are you running USB 3.0?




Just noticed that I've made a pretty big mistake there.

That's not the SanDisk cruzer micro. Look at the Test field and you can clearly see it's my C drive. Whoops.

I blame everyone that saw my first post for not spotting that. w00tTongueBigGrin

I'll edit my first post with the real data shortly.



Edit.

First post updated.


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Edited
4 Years Ago by PlaneMan


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