Group Average(9 Highest-Voted)
Real World Speed
Performance profile from 1,322 user samples
1,322 User Benchmarks
Best Bench: 112% 154GB free (System drive)
Worst Bench: 58% 18GB free (System drive)
Poor: 58% Great: 112%
SPEED RANK: 244th / 991
Effective Speed
Effective SSD Speed
89.8 % 95.4 % Slightly faster effective speed.
Avg. Sequential Read Speed
458 MB/s +1% 452 MB/s
Avg. Sequential Write Speed
390 MB/s 398 MB/s +2%
4K Read
Avg. 4K Random Read Speed
28.5 MB/s 31.1 MB/s Slightly faster random read.
4K Write
Avg. 4K Random Write Speed
83.3 MB/s 89.3 MB/s Slightly faster random write.
Avg. Sequential Mixed IO Speed
241 MB/s 335 MB/s Much faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
31.7 MB/s 41.3 MB/s Much faster random mixed IO.
Avg. Sustained Write Speed
329 MB/s Slightly faster sustained write speed.
306 MB/s
Peak Sequential Read Speed
511 MB/s +3% 496 MB/s
Peak Sequential Write Speed
474 MB/s +2% 465 MB/s
4K Read
Peak 4K Random Read Speed
35.1 MB/s 38.4 MB/s Slightly faster peak random read.
4K Write
Peak 4K Random Write Speed
123 MB/s 124 MB/s +1%
Peak Sequential Mixed IO Speed
381 MB/s 385 MB/s +1%
4K Mixed
Peak 4K Random Mixed IO Speed
40.7 MB/s 52.5 MB/s Faster peak random mixed IO.
Peak Sequential Sustained Write 60s Average
468 MB/s Faster peak sustained write speed.
403 MB/s
Market Share
Based on 12,089,043 SSDs tested.
User Rating
UBM User Rating
63 % 77.3 % More popular.
Market Share
Market Share (trailing 30 days)
0.03 % 0.83 % Insanely higher market share.
Price (score)
$123 90.8 USD Much cheaper.
Value For Money
71.6 % 110 % Much better value.
DQ Read
Peak 4K-64Thread Read Speed
364 MB/s +5% 348 MB/s
DQ Write
Peak 4K-64Thread Write Speed
305 MB/s 349 MB/s Slightly faster peak deep queue write.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
155 MB/s 274 MB/s Much faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
294 MB/s 298 MB/s +1%
ADQ Write
Avg. 4K-64Thread Write Speed
257 MB/s 292 MB/s Slightly faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
124 MB/s 220 MB/s Much faster deep queue mixed IO.
69 Months 41 Months Much more recent.
AS-SSD Total
AS-SSD Total Score
1,166 Pts 1,191 Pts +2%
240GB   —

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]


Solid State Drive Rankings (Price vs Performance) February 2019 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

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Intel Core i7-8700K $360Nvidia GTX 1070 $336Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $149Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $90
Intel Core i5-8600K $259Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $750SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $126SanDisk Ultra Fit 32GB $12
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