Average Bench: 81.6% (407th of 1021)

Based on 40,517 user benchmarks.  Models: Crucial_CT256MX100SSD1, Crucial_ CT256MX100SSD1, Crucial_ Crucial_CT256MX1, Crucial_CT256MX1, Crucial_ CT256MX100SS

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]


Very good average bench

The Crucial MX100 256GB averaged just 18.3% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial MX100 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 139MB/s
Avg. 4K Random Mixed IO Speed 37MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 256GB is 38.7%. This is a relatively wide range which indicates that the Crucial MX100 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 229MB/s
Avg. Sequential Mixed IO Speed 287MB/s

Average Bench

(Based on 40,517 samples)
Min Avg Max
309 Read 412 454
266 Write 317 332
231 Mixed 287 317
94.5 SusWrite 229 329
69.6% 311 MB/s
Min Avg Max
18.8 4K Read 26.2 30.6
40.3 4K Write 87.3 118
23.7 4K Mixed 37 44.2
133% 50.2 MB/s
Min Avg Max
116 DQ Read 179 250
103 DQ Write 271 313
50.1 DQ Mixed 139 182
129% 196 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
193GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 324 326 327 327 327 327 MB/s
Read 430
Write 326
Mixed 290
SusWrite 326
77% 343 MB/s
4K Read 26.2
4K Write 75.8
4K Mixed 36.1
126% 46 MB/s
DQ Read 191
DQ Write 308
DQ Mixed 179
155% 226 MB/s
193GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 300 315 321 324 322 326 MB/s
Read 441
Write 305
Mixed 286
SusWrite 318
76% 338 MB/s
4K Read 24.5
4K Write 64.4
4K Mixed 34.8
116% 41.2 MB/s
DQ Read 217
DQ Write 307
DQ Mixed 174
156% 233 MB/s
39GB free (System drive)
Firmware: MU02
SusWrite @10s intervals: 224 144 119 136 119 123 MB/s
Read 430
Write 328
Mixed 298
SusWrite 144
67% 300 MB/s
4K Read 22.8
4K Write 58.1
4K Mixed 31
105% 37.3 MB/s
DQ Read 176
DQ Write 311
DQ Mixed 150
140% 212 MB/s
70GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 260 256 283 244 187 158 MB/s
Read 410
Write 332
Mixed 296
SusWrite 231
71% 317 MB/s
4K Read 15.9
4K Write 50.7
4K Mixed 24
82% 30.2 MB/s
DQ Read 172
DQ Write 310
DQ Mixed 149
139% 210 MB/s
40,517 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 26,446,511 SSDs tested.

Typical MX100 256GB Builds (Compare 17,334 builds) See popular component choices, score breakdowns and rankings.
Gaming 53%
Desktop 76%
Workstation 59%

Motherboard: Asus Z97-A - $150

EDIT WITH CUSTOM PC BUILDER Value: 47% - Average Total price: $1,009

Popular MX100 256GB compatible motherboards:

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.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) May 2020 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 - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


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

The choice between speed and capacity is over, choose both...

Added 5 years ago.


3 years ago.


As a pure drive it's average, as a price leader it's superb. The bang for the buck makes it hard to beat.—Dec '14


5 years ago.


14 months ago.

I had it for 4 years now and it havent faild me once 8 months after the review, a goddam sata powercable fired it.

1021 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-9400F $165Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $199Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $365Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $55
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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