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


Controller: Marvell 88SS9189. Flash Memory: Micron 16nm MLC.

Real World Speed
Performance profile from 66,728 user samples
52,653 User Benchmarks
Best Bench: 97% 140GB free
Worst Bench: 55% 42GB free
Poor: 55% Great: 97%
SPEED RANK: 225th / 863
14,075 User Benchmarks
Best Bench: 95% 38GB free
Worst Bench: 61% 206GB free
Poor: 61% Great: 95%
SPEED RANK: 184th / 863
Effective Speed
Effective SSD Speed
78.1 % -4% 81.3 % +4%
Avg. Sequential Read Speed
483 MB/s -2% 495 MB/s +2%
Avg. Sequential Write Speed
314 MB/s -3% 322 MB/s +3%
4K Read
Avg. 4K Random Read Speed
35.8 MB/s Much faster random read.
25.5 MB/s -40%
4K Write
Avg. 4K Random Write Speed
56.7 MB/s -51% 85.5 MB/s Much faster random write.
Avg. Sequential Mixed IO Speed
321 MB/s -15% 368 MB/s Slightly faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
20.2 MB/s -22% 24.7 MB/s Faster random mixed IO.
Peak Sequential Read Speed
510 MB/s -2% 522 MB/s +2%
Peak Sequential Write Speed
352 MB/s Slightly faster peak write speed.
332 MB/s -6%
4K Read
Peak 4K Random Read Speed
45.6 MB/s Much faster peak random read.
31.3 MB/s -46%
4K Write
Peak 4K Random Write Speed
83.2 MB/s -48% 123 MB/s Much faster peak random write.
Peak Sequential Mixed IO Speed
356 MB/s -11% 396 MB/s Slightly faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
27.5 MB/s -22% 33.5 MB/s Faster peak random mixed IO.
Market Share
Based on 4,485,966 SSDs tested.
Market Share
Market Share (trailing 30 days)
1.76 % Hugely higher market share.
0.52 % -238%
Value For Money
53.3 % -33% 71.1 % Much better value.
User Rating
UBM User Rating
67 % +5% 64 % -5%
Price (score)
$158 -27% $116 Cheaper.
52 Months -21% 41 Months More recent.
DQ Read
Peak 4K-64Thread Read Speed
367 MB/s Much faster peak deep queue read.
212 MB/s -73%
DQ Write
Peak 4K-64Thread Write Speed
240 MB/s -27% 304 MB/s Faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
1,069 Pts Stronger server IO.
910 Pts -17%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
84.4 MB/s Much faster peak deep queue mixed IO.
53.2 MB/s -59%
ADQ Read
Avg. 4K-64Thread Read Speed
183 MB/s Much faster deep queue read.
122 MB/s -50%
ADQ Write
Avg. 4K-64Thread Write Speed
146 MB/s -40% 205 MB/s Much faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
47.3 MB/s Much faster deep queue mixed IO.
35.8 MB/s -32%
250GB 256GB

The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]


The Crucial MX100 is the first 16nm SSD to date. Aside from NAND, the MX100 shares the same hardware as its more expensive sibling, the M550. Comparing the MX100 and M550 shows that the two drives have similar read speeds but that the MX100 lags by nearly 50% at writing. The newer 16nm NAND reduces costs and accordingly the MX100 is the cheapest SSD (per GB) to date. In terms of performance the MX100 is a compromise which may or may not be worth making depending on individual circumstances. For typical desktop use including email, office documents and web browsing the MX100 is a great choice but power users should look elsewhere. Comparing the 250GB 840 EVO and 256GB MX100 shows that for a marginal premium, the Evo offers better write speeds. (Note: at 500GB they are more evenly matched) [Jun '14 SSDrivePro]


Solid State Drive Rankings (Price vs Performance) November 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 $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $250AMD RX 480 $240Samsung 850 Pro 256GB $110
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $150
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $192SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $17
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $10
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