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


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

Real World Speed
Performance profile from 21,631 user samples
6,531 User Benchmarks
Best Bench: 101% 77GB free
Worst Bench: 62% 203GB free
Poor: 62% Great: 101%
SPEED RANK: 150th / 873
15,100 User Benchmarks
Best Bench: 96% 8GB free
Worst Bench: 60% 67GB free
Poor: 60% Great: 96%
SPEED RANK: 200th / 873
Effective Speed
Effective SSD Speed
83.4 % +4% 80.4 % -4%
Avg. Sequential Read Speed
504 MB/s +2% 494 MB/s -2%
Avg. Sequential Write Speed
370 MB/s Faster write speed.
321 MB/s -15%
4K Read
Avg. 4K Random Read Speed
27 MB/s Slightly faster random read.
25.4 MB/s -6%
4K Write
Avg. 4K Random Write Speed
70.7 MB/s -17% 82.8 MB/s Faster random write.
Avg. Sequential Mixed IO Speed
379 MB/s +2% 371 MB/s -2%
4K Mixed
Avg. 4K Random Mixed IO Speed
24 MB/s -2% 24.4 MB/s +2%
Peak Sequential Read Speed
527 MB/s +1% 523 MB/s -1%
Peak Sequential Write Speed
400 MB/s Faster peak write speed.
332 MB/s -20%
4K Read
Peak 4K Random Read Speed
33.2 MB/s Slightly faster peak random read.
31 MB/s -7%
4K Write
Peak 4K Random Write Speed
102 MB/s -19% 121 MB/s Faster peak random write.
Peak Sequential Mixed IO Speed
416 MB/s Slightly faster peak mixed IO speed.
396 MB/s -5%
4K Mixed
Peak 4K Random Mixed IO Speed
34.2 MB/s +2% 33.6 MB/s -2%
Market Share
Based on 4,725,021 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.23 % -126% 0.52 % Hugely higher market share.
Value For Money
64.3 % -9% 70.3 % Slightly better value.
User Rating
UBM User Rating
68 % Slightly more popular.
64 % -6%
Price (score)
$134 -13% $116 Slightly cheaper.
35 Months More recent.
42 Months -17%
DQ Read
Peak 4K-64Thread Read Speed
359 MB/s Much faster peak deep queue read.
215 MB/s -67%
DQ Write
Peak 4K-64Thread Write Speed
280 MB/s -9% 304 MB/s Slightly faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
1,100 Pts Stronger server IO.
912 Pts -21%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
66.8 MB/s Much faster peak deep queue mixed IO.
49.5 MB/s -35%
ADQ Read
Avg. 4K-64Thread Read Speed
181 MB/s Much faster deep queue read.
119 MB/s -52%
ADQ Write
Avg. 4K-64Thread Write Speed
176 MB/s -12% 198 MB/s Slightly faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
41.7 MB/s Faster deep queue mixed IO.
35.1 MB/s -19%
250GB 256GB

The 250GB Crucial MX200 is successor to the hugely successful MX100. Both drives use the same NAND and controller but the new MX200 features Dynamic Write Acceleration (DWA) which is a new dynamically sized SLC cache. Samsung were the first to introduce SLC caching on the 840 Evo nearly two years ago so Crucial are somewhat late to the party. SLC caches generally only help performance in corner case real word scenarios and benchmarks. I prefer drives without SLC caches because they offer more consistent and sustainable real world IO. Comparing the MX100 and MX200 shows that the newer MX200 has a significantly faster peak write speed which is of course explained by the new DWA cache. Price is the deciding factor between the MX100 and MX200 so although the MX200 isn't priced aggressively yet, it will almost certainly move up the value rankings when retailers build stocks and subsequently cut prices. [Feb '15 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) December 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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Intel Core i7-7700K $313Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $285AMD RX 480 $265Samsung 850 Evo 500GB $140
Intel Core i5-7600K $215Nvidia GTX 1060-6GB $260Samsung 850 Pro 256GB $114
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $200SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $215SanDisk Ultra Fit 32GB $10
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