SanDiskSDSSDXP-240G-G25
SamsungMZ-7PD256BW

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC.

Controller: Samsung 3-core MDX. Flash Memory: Samsung 21nm Toggle Mode MLC.

Real World Speed
Performance profile from 569 user samples
64 User Benchmarks:
Best Score: 137% 176GB free
Worst Score: 75% 141GB free
Worst: 75% Best: 137%
SPEED RANK: 17th / 468
505 User Benchmarks:
Best Score: 139% 137GB free
Worst Score: 49% 3GB free
Worst: 49% Best: 139%
SPEED RANK: 25th / 468
Read?
Avg. Sequential Read Speed
452 MB/s -10% 496 MB/s Slightly faster read speed.
+10%
Write?
Avg. Sequential Write Speed
433 MB/s Slightly faster write speed.
+8%
402 MB/s -8%
4K Read?
Avg. 4K Random Read Speed
27.6 MB/s -4% 28.6 MB/s +4%
4K Write?
Avg. 4K Random Write Speed
74.4 MB/s +4% 71.8 MB/s -4%
Mixed
Avg. Sequential Mixed IO Speed
391 MB/s -7% 419 MB/s Slightly faster mixed IO speed.
+7%
4K Mixed
Avg. 4K Random Mixed IO Speed
22.2 MB/s +1% 21.9 MB/s -1%
Read?
Peak Sequential Read Speed
487 MB/s -8% 525 MB/s Slightly faster peak read speed.
+8%
Write?
Peak Sequential Write Speed
487 MB/s -2% 498 MB/s +2%
4K Read?
Peak 4K Random Read Speed
36.3 MB/s -0% 36.4 MB/s +0%
4K Write?
Peak 4K Random Write Speed
131 MB/s Slightly faster peak random write.
+10%
119 MB/s -10%
Mixed
Peak Sequential Mixed IO Speed
456 MB/s -11% 508 MB/s Slightly faster peak mixed IO speed.
+11%
4K Mixed
Peak 4K Random Mixed IO Speed
29.3 MB/s +2% 28.7 MB/s -2%
Value?
Value For Money
79.3 % -15% 90.8 % Slightly better value.
+15%
User Rating?
UBM User Rating
74 % -5% 78 % Slightly more popular.
+5%
Price?
Price (score)
$190 -11% $169 Slightly cheaper.
+11%
Effective Speed?
Effective SSD Speed
479 MB/s -1% 486 MB/s +1%
Age
Newness
16 Months Much more recent.
+30%
23 Months -30%
DQ Read?
Peak 4K-64Thread Read Speed
369 MB/s -3% 380 MB/s +3%
DQ Write?
Peak 4K-64Thread Write Speed
306 MB/s -4% 317 MB/s +4%
AS-SSD Total?
AS-SSD Total Score
1,185 Pts -2% 1,206 Pts +2%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
67.7 MB/s -34% 90.4 MB/s Much faster peak deep queue mixed IO.
+34%
ADQ Read?
Avg. 4K-64Thread Read Speed
260 MB/s Slightly faster deep queue read.
+12%
233 MB/s -12%
ADQ Write?
Avg. 4K-64Thread Write Speed
248 MB/s Faster deep queue write.
+19%
208 MB/s -19%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
57.4 MB/s -4% 59.5 MB/s +4%
Capacity
Capacity
240GB 256GB

The Sandisk Extreme II uses the 88SS9187-BLD2 controller, Marvel's latest, and Sandisk's own 19MM MLC Memory. On paper this makes an extremely good combination and the benchmarks agree. The Extreme II scored an impressive 1143 in the server orientated AS SSD Benchmark putting it amongst the more capable server drives. In terms of real world consumer performance the Extreme II also fared well achieving a real world speed index score of 570.5 MB/s, amongst the top three scores we have seen to date. The Extreme II has everything going for it apart from its price which is currently significantly above average and hurting its value rating. Because the Extreme is the newest SSD we have in our group test we expect prices will drop with time. Until then, however, there is better value to be had elsewhere. [Jun '13 SSDrivePro]

MORE DETAILS

The 840 Pro is stunning. Samsung have created a completely in-house package including both the controller and their own new 21nm toggle mode NAND. On release (Oct '12) this was the fastest performing deep queue depth consumer grade SSD available. Fast forward six months (Apr '13) and the 840 Pro still holds both the random read/write deep queue depth speed records of 384 MB/s and 326 MB/s, impressive considering how fast the SSD space tends to move. There are no obvious weaknesses, in-fact the 840 pro takes first place in nearly all of the speed categories and is only seriously rivalled by one drive, the OCZ Vector. To conclude, in terms of both outright performance, particularly server orientated, and value for money the 256GB and 128GB 840 Pros are amongst the top handful of drives currently available. [Jun '13 SSDrivePro]

MORE DETAILS

Solid State Drive User Rankings Chart

September 2014 SSD Rankings

Welcome to our consumer SSD comparison. We calculate effective speed which measures performance for typical consumers. Effective speed is adjusted by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. Vote to share your opinion. [SSDrivePro]

Group Test Results

How Fast Is Your SSD?

Size up your PC in less than a minute.

Welcome to our free PC speed test tool. UserBenchMark will compare the strengths and weaknesses of each component in your PC to the ten most popular components in its class.

How it works

  • - Download and run UserBenchMark (UBM)
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - Drive benchmarks include: read, write and mixed IO.
  • - CPU benchmarks include: integer, floating and string.
  • - GPU benchmarks include: DX9 and DX10 3D performance.
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the highest voted in class
  • - Share your opinion by voting

Frequently Asked Questions

Highest-Rated

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The Best.
USBSSDCPUHDDGPU
SanDisk Extreme USB 3.0 16GBSamsung 840 Evo 250GBAMD FX-8350WD Black 1TB (2013)AMD R9 280X
SanDisk Extreme USB 3.0 32GBSamsung 840 Pro 256GBAMD FX-6300Seagate Desktop SSHD 1TBNvidia GTX 770
SanDisk Extreme USB 3.0 64GBCrucial M550 256GBIntel Core i5-2500KWD VelociRaptor 1TBAMD R9 270X
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