Controller: Marvell SS889175. Memory: SanDisk 19nm eX2 ABL MLC.

Controller: Samsung Dual Core MGX. Memory: Samsung 40nm TLC V-NAND

Real World Speed
Performance profile from 28,522 user samples
4,089 User Benchmarks
Best Bench: 81% 7GB free
Worst Bench: 47% 10GB free
Poor: 47% Great: 81%
SPEED RANK: 433rd / 860
24,433 User Benchmarks
Best Bench: 114% 56GB free
Worst Bench: 65% 73GB free
Poor: 65% Great: 114%
SPEED RANK: 68th / 860
Effective Speed
Effective SSD Speed
64.3 % -46% 94.1 % Much faster effective speed.
Avg. Sequential Read Speed
403 MB/s -22% 493 MB/s Faster read speed.
Avg. Sequential Write Speed
213 MB/s -83% 389 MB/s Hugely faster write speed.
4K Read
Avg. 4K Random Read Speed
25.9 MB/s -48% 38.3 MB/s Much faster random read.
4K Write
Avg. 4K Random Write Speed
69.3 MB/s -13% 78.2 MB/s Slightly faster random write.
Avg. Sequential Mixed IO Speed
251 MB/s -55% 390 MB/s Much faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
17.4 MB/s -82% 31.6 MB/s Hugely faster random mixed IO.
Peak Sequential Read Speed
443 MB/s -17% 518 MB/s Faster peak read speed.
Peak Sequential Write Speed
277 MB/s -50% 416 MB/s Much faster peak write speed.
4K Read
Peak 4K Random Read Speed
33 MB/s -44% 47.5 MB/s Much faster peak random read.
4K Write
Peak 4K Random Write Speed
107 MB/s -2% 109 MB/s +2%
Peak Sequential Mixed IO Speed
314 MB/s -34% 420 MB/s Much faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
23.5 MB/s -91% 45 MB/s Hugely faster peak random mixed IO.
Market Share
Based on 4,120,634 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.07 % -1,486% 1.11 % Insanely higher market share.
Value For Money
35.5 % -74% 61.7 % Much better value.
User Rating
UBM User Rating
61 % -21% 74 % More popular.
Price (score)
$107 -26% $80 Cheaper.
57 Months -40% 34 Months Much more recent.
DQ Read
Peak 4K-64Thread Read Speed
311 MB/s -22% 378 MB/s Faster peak deep queue read.
DQ Write
Peak 4K-64Thread Write Speed
195 MB/s -46% 285 MB/s Much faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
920 Pts -27% 1,170 Pts Stronger server IO.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
47.1 MB/s -140% 113 MB/s Hugely faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
151 MB/s -31% 198 MB/s Much faster deep queue read.
ADQ Write
Avg. 4K-64Thread Write Speed
137 MB/s -37% 188 MB/s Much faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
32 MB/s -100% 64.1 MB/s Hugely faster deep queue mixed IO.
128GB 120GB

The 128GB Sandisk Ultra Plus proved to be a bit of a disappointment in comparison to its larger 256GB sibling. The 256GB version has more NAND modules which enable peak sequential write speeds in the region of 450 MB/s. On the 128GB version we saw a peak sequential write speed of just 279 MB/s which is significantly lower than the market leaders which also manage to hit the high 400's. Across the core performance metrics, the 128GB Ultra Plus is around 25% slower than the average of its top competitors and, unlike its 256GB sibling, really struggles to keep up with its direct competition. In terms of value for money the Ultra Plus fares a little better thanks to its reasonably low price tag but there are far better deals to be had in the 128GB category. [Feb '14 SSDrivePro]


Solid State Drive Rankings (Price vs Performance) October 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust 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. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
Intel Core i7-7700K $300Nvidia GTX 1070 $394Samsung 850 Evo 250GB $98
AMD Ryzen 7 1700 $280AMD RX 480 $491Samsung 850 Pro 256GB $126
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $150
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $163SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $842SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $180SanDisk Ultra Fit 32GB $13
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