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 35,719 user samples
5,481 User Benchmarks
Best Bench: 79% 15GB free
Worst Bench: 48% 22GB free
Poor: 48% Great: 79%
SPEED RANK: 484th / 911
30,238 User Benchmarks
Best Bench: 113% 34GB free
Worst Bench: 62% 12GB free
Poor: 62% Great: 113%
SPEED RANK: 96th / 911
Effective Speed
Effective SSD Speed
63.5 % 91.7 % Much faster effective speed.
Avg. Sequential Read Speed
403 MB/s 489 MB/s Faster read speed.
Avg. Sequential Write Speed
211 MB/s 387 MB/s Hugely faster write speed.
4K Read
Avg. 4K Random Read Speed
25.6 MB/s 37.1 MB/s Much faster random read.
4K Write
Avg. 4K Random Write Speed
67.6 MB/s 74.4 MB/s Slightly faster random write.
Avg. Sequential Mixed IO Speed
249 MB/s 391 MB/s Much faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
17.1 MB/s 30.6 MB/s Much faster random mixed IO.
Peak Sequential Read Speed
445 MB/s 517 MB/s Faster peak read speed.
Peak Sequential Write Speed
279 MB/s 415 MB/s Much faster peak write speed.
4K Read
Peak 4K Random Read Speed
31.9 MB/s 46.8 MB/s Much faster peak random read.
4K Write
Peak 4K Random Write Speed
101 MB/s 103 MB/s +2%
Peak Sequential Mixed IO Speed
312 MB/s 420 MB/s Much faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
23.2 MB/s 44.7 MB/s Hugely faster peak random mixed IO.
Market Share
Based on 6,060,662 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.13 % 0.72 % Hugely higher market share.
Value For Money
31 % 56.4 % Hugely better value.
User Rating
UBM User Rating
61 % 75 % More popular.
Price (score)
$126 $87 Much cheaper.
62 Months 39 Months Much more recent.
DQ Read
Peak 4K-64Thread Read Speed
302 MB/s 371 MB/s Faster peak deep queue read.
DQ Write
Peak 4K-64Thread Write Speed
195 MB/s 280 MB/s Much faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
899 Pts 1,147 Pts Stronger server IO.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
47.1 MB/s 112 MB/s Hugely faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
145 MB/s 183 MB/s Faster deep queue read.
ADQ Write
Avg. 4K-64Thread Write Speed
135 MB/s 174 MB/s Faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
32 MB/s 61.7 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) March 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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 i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $139
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
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