Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC.

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

Real World Speed
Performance profile from 49,155 user samples
44,093 User Benchmarks
Best Bench: 94% 24GB free
Worst Bench: 59% 108GB free
Poor: 59% Great: 94%
SPEED RANK: 216th / 873
5,062 User Benchmarks
Best Bench: 80% 33GB free
Worst Bench: 49% 24GB free
Poor: 49% Great: 80%
SPEED RANK: 443rd / 873
Effective Speed
Effective SSD Speed
79.1 % Faster effective speed.
64.3 % -23%
Avg. Sequential Read Speed
474 MB/s Faster read speed.
403 MB/s -18%
Avg. Sequential Write Speed
314 MB/s Much faster write speed.
212 MB/s -48%
4K Read
Avg. 4K Random Read Speed
36.9 MB/s Much faster random read.
25.7 MB/s -44%
4K Write
Avg. 4K Random Write Speed
58.9 MB/s -15% 67.7 MB/s Slightly faster random write.
Avg. Sequential Mixed IO Speed
312 MB/s Faster mixed IO speed.
249 MB/s -25%
4K Mixed
Avg. 4K Random Mixed IO Speed
19.7 MB/s Slightly faster random mixed IO.
17.5 MB/s -13%
Peak Sequential Read Speed
502 MB/s Slightly faster peak read speed.
439 MB/s -14%
Peak Sequential Write Speed
351 MB/s Faster peak write speed.
278 MB/s -26%
4K Read
Peak 4K Random Read Speed
45.1 MB/s Much faster peak random read.
32.6 MB/s -38%
4K Write
Peak 4K Random Write Speed
80.9 MB/s -26% 102 MB/s Faster peak random write.
Peak Sequential Mixed IO Speed
343 MB/s Slightly faster peak mixed IO speed.
316 MB/s -9%
4K Mixed
Peak 4K Random Mixed IO Speed
24.6 MB/s +4% 23.7 MB/s -4%
Market Share
Based on 5,230,364 SSDs tested.
Market Share
Market Share (trailing 30 days)
1.02 % Hugely higher market share.
0.14 % -629%
Value For Money
29.4 % -6% 31.1 % Slightly better value.
User Rating
UBM User Rating
62 % +2% 61 % -2%
Price (score)
$170 -25% $128 Cheaper.
54 Months Slightly more recent.
60 Months -10%
DQ Read
Peak 4K-64Thread Read Speed
360 MB/s Faster peak deep queue read.
307 MB/s -17%
DQ Write
Peak 4K-64Thread Write Speed
239 MB/s Faster peak deep queue write.
196 MB/s -22%
AS-SSD Total
AS-SSD Total Score
1,053 Pts Stronger server IO.
909 Pts -16%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
67.9 MB/s Much faster peak deep queue mixed IO.
46.9 MB/s -45%
ADQ Read
Avg. 4K-64Thread Read Speed
208 MB/s Faster deep queue read.
163 MB/s -28%
ADQ Write
Avg. 4K-64Thread Write Speed
159 MB/s Slightly faster deep queue write.
139 MB/s -14%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
43.9 MB/s Much faster deep queue mixed IO.
32.7 MB/s -34%
120GB 128GB

The 120GB Evo, like its 250GB sibling, features a second level Turbowrite cache (TWC). This 3GB block of high speed SLC memory allows the Evo to write data at 370 MB/s, nearly double its normal rate. When the TWC is full write speeds drop by around 50% but since consumers generally write less than 3GB in a typical write operation, the performance drop will rarely be noticed. On the other hand, in a server environment this sort of performance degradation would be unacceptable. Comparing the 120GB and 250GB Evos shows that they have similar performance profiles. The performance equivalence between the different capacities, coupled with the fact that their prices are almost linear, implies that both capacities represent roughly the same value for money. Within its TWC, the 120GB Evo is capable of chart topping burst IO rates and it sits squarely amongst the best performing 120GB drives. [Aug '14 SSDrivePro]


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) January 2018 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

 Best User Rated

The Best.
Intel Core i7-7700K $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $290Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback