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

Controller: Silicon Motion SM2258. Flash Memory: Micron 3D TLC.

Real World Speed
Performance profile from 19,494 user samples
18,885 User Benchmarks
Best Bench: 95% 59GB free
Worst Bench: 61% 184GB free
Poor: 61% Great: 95%
SPEED RANK: 214th / 908
609 User Benchmarks
Best Bench: 104% 153GB free
Worst Bench: 62% 20GB free
Poor: 62% Great: 104%
SPEED RANK: 149th / 908
Effective Speed
Effective SSD Speed
80.7 % 85.6 % Slightly faster effective speed.
Avg. Sequential Read Speed
496 MB/s 502 MB/s +1%
Avg. Sequential Write Speed
321 MB/s 374 MB/s Faster write speed.
4K Read
Avg. 4K Random Read Speed
25.5 MB/s 30.8 MB/s Faster random read.
4K Write
Avg. 4K Random Write Speed
82.4 MB/s Faster random write.
66.8 MB/s
Avg. Sequential Mixed IO Speed
370 MB/s 401 MB/s Slightly faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
24.8 MB/s 28.3 MB/s Slightly faster random mixed IO.
Peak Sequential Read Speed
522 MB/s 527 MB/s +1%
Peak Sequential Write Speed
331 MB/s 398 MB/s Faster peak write speed.
4K Read
Peak 4K Random Read Speed
30.9 MB/s 39.7 MB/s Faster peak random read.
4K Write
Peak 4K Random Write Speed
115 MB/s Faster peak random write.
94.5 MB/s
Peak Sequential Mixed IO Speed
397 MB/s 422 MB/s Slightly faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
33.4 MB/s 41.5 MB/s Faster peak random mixed IO.
Market Share
Based on 6,032,923 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.33 % 0.37 % Slightly higher market share.
Value For Money
70.6 % 97.2 % Much better value.
User Rating
UBM User Rating
64 % 67 % +5%
Price (score)
$116 $80 Much cheaper.
45 Months 3 Months Hugely more recent.
DQ Read
Peak 4K-64Thread Read Speed
215 MB/s 355 MB/s Much faster peak deep queue read.
DQ Write
Peak 4K-64Thread Write Speed
301 MB/s Slightly faster peak deep queue write.
274 MB/s
AS-SSD Total
AS-SSD Total Score
902 Pts 1,093 Pts Stronger server IO.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
52.6 MB/s 74.5 MB/s Much faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
122 MB/s 154 MB/s Faster deep queue read.
ADQ Write
Avg. 4K-64Thread Write Speed
197 MB/s Faster deep queue write.
157 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
36 MB/s 45.5 MB/s Faster deep queue mixed IO.
256GB 250GB

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]


The MX500 is Crucial’s current flagship consumer SATA SSD featuring their latest second generation 64-layer 3D TLC NAND. It’s available in 250 GB, 500 GB, 1 TB and 2 TB capacities in a 2.5-inch form factor. All but the 2 TB version will also be available in M.2 (2280) form in the future. The MX500 features a Silicon Motion SM2258 controller which is a change from the Marvell 88SS1074 controller featured in the MX300 (it’s nearly two year old predecessor). Performance is around 30% better than on the MX300 which currently retails at the same price. The MX500 has an SLC cache which increases with drive capacity. Consequently, the larger capacities are better able to sustain high sequential write speeds. The 250 GB version has 250MB of SLC cache, the 500 GB has 512 MB, the 1 TB has 1 GB and the 2 TB has 2 GB. Extended sustained write performance tests show that even though speed does drop off after the cache has been exhausted, it is still maintained at very respectable levels. The MX500’s five year warranty is in line with Samsung’s 850 Evo and exceeds it in terms of endurance (just 75 TBW for the 250 GB 850 Evo versus 100 TBW for the 250 GB MX500). It doesn’t quite match up to the Samsung’s 850 Evo’s performance (effective speed 8% slower), however at current prices it is about 20% cheaper, and on balance offers better value for money. [Mar '18 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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Intel Core i7-8700K $330Nvidia GTX 1070 $117Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $141
Intel Core i5-8600K $235AMD RX 480 $400Samsung 850 Pro 256GB $160
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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