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

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

Real World Speed
Performance profile from 20,065 user samples
17,457 User Benchmarks
Best Bench: 114% 41GB free
Worst Bench: 61% 74GB free
Poor: 61% Great: 114%
SPEED RANK: 66th / 850
2,608 User Benchmarks
Best Bench: 82% 97GB free
Worst Bench: 50% 86GB free
Poor: 50% Great: 82%
SPEED RANK: 417th / 850
Effective Speed
Effective SSD Speed
92.9 % Much faster effective speed.
64.4 % -44%
Avg. Sequential Read Speed
492 MB/s Faster read speed.
402 MB/s -22%
Avg. Sequential Write Speed
388 MB/s Hugely faster write speed.
210 MB/s -85%
4K Read
Avg. 4K Random Read Speed
37.8 MB/s Much faster random read.
26.1 MB/s -45%
4K Write
Avg. 4K Random Write Speed
75.3 MB/s Slightly faster random write.
68.6 MB/s -10%
Avg. Sequential Mixed IO Speed
391 MB/s Much faster mixed IO speed.
249 MB/s -57%
4K Mixed
Avg. 4K Random Mixed IO Speed
31.3 MB/s Much faster random mixed IO.
17.4 MB/s -80%
Peak Sequential Read Speed
518 MB/s Faster peak read speed.
440 MB/s -18%
Peak Sequential Write Speed
416 MB/s Much faster peak write speed.
280 MB/s -49%
4K Read
Peak 4K Random Read Speed
47.6 MB/s Much faster peak random read.
33 MB/s -44%
4K Write
Peak 4K Random Write Speed
109 MB/s +4% 105 MB/s -4%
Peak Sequential Mixed IO Speed
419 MB/s Much faster peak mixed IO speed.
315 MB/s -33%
4K Mixed
Peak 4K Random Mixed IO Speed
44.7 MB/s Hugely faster peak random mixed IO.
23.4 MB/s -91%
Market Share
Based on 2,813,985 SSDs tested.
Market Share
Market Share (trailing 30 days)
1.2 % Hugely higher market share.
0.21 % -471%
Value For Money
53.9 % Better value.
44.2 % -22%
User Rating
UBM User Rating
72 % More popular.
62 % -16%
Price (score)
$94 -15% $80 Slightly cheaper.
29 Months Much more recent.
52 Months -44%
DQ Read
Peak 4K-64Thread Read Speed
378 MB/s Faster peak deep queue read.
313 MB/s -21%
DQ Write
Peak 4K-64Thread Write Speed
284 MB/s Much faster peak deep queue write.
196 MB/s -45%
AS-SSD Total
AS-SSD Total Score
1,169 Pts Stronger server IO.
922 Pts -27%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
111 MB/s Hugely faster peak deep queue mixed IO.
46.9 MB/s -137%
ADQ Read
Avg. 4K-64Thread Read Speed
191 MB/s Faster deep queue read.
163 MB/s -17%
ADQ Write
Avg. 4K-64Thread Write Speed
178 MB/s Faster deep queue write.
138 MB/s -29%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
63.1 MB/s Hugely faster deep queue mixed IO.
32.5 MB/s -94%
120GB 128GB

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) May 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 $309Nvidia GTX 1070 $368Samsung 850 Evo 250GB $98
AMD Ryzen 7 1700 $300AMD RX 480 $210Samsung 850 Pro 256GB $138
Intel Core i5-7600K $240Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $167
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $127SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $13
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