Average Bench: 82.1% (436th of 1058)

Based on 50,665 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 17.8% 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 144MB/s
Avg. 4K Random Mixed IO Speed 36.9MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 256GB is 35.9%. This is a relatively wide range which indicates that the Crucial MX100 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 236MB/s
Avg. Sequential Mixed IO Speed 288MB/s

Average Bench

(Based on 50,665 samples)
Min Avg Max
319 Read 412 455
280 Write 319 331
239 Mixed 288 316
102 SusWrite 236 330
70.2% 314 MB/s
Min Avg Max
18 4K Read 26.3 30.7
45.4 4K Write 87.5 118
24 4K Mixed 36.9 44
134% 50.2 MB/s
Min Avg Max
114 DQ Read 180 271
104 DQ Write 269 312
56.4 DQ Mixed 144 182
131% 198 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
189GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 288 303 307 311 308 310 MB/s
Read 430
Write 323
Mixed 295
SusWrite 304
76% 338 MB/s
4K Read 29.8
4K Write 112
4K Mixed 43.8
161% 61.9 MB/s
DQ Read 172
DQ Write 309
DQ Mixed 148
139% 210 MB/s
53GB free
Firmware: MU01
SusWrite @10s intervals: 315 314 307 308 315 120 MB/s
Read 346
Write 331
Mixed 283
SusWrite 280
70% 310 MB/s
4K Read 28.2
4K Write 84.4
4K Mixed 39
137% 50.5 MB/s
DQ Read 166
DQ Write 199
DQ Mixed 158
126% 174 MB/s
33GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 256 166 161 153 150 142 MB/s
Read 408
Write 326
Mixed 266
SusWrite 171
66% 293 MB/s
4K Read 21.9
4K Write 97
4K Mixed 40.9
137% 53.3 MB/s
DQ Read 174
DQ Write 293
DQ Mixed 111
118% 193 MB/s
69GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 206 218 194 170 159 155 MB/s
Read 443
Write 304
Mixed 306
SusWrite 184
69% 309 MB/s
4K Read 28.5
4K Write 87.8
4K Mixed 38.9
140% 51.7 MB/s
DQ Read 171
DQ Write 185
DQ Mixed 147
119% 168 MB/s
197GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 243 244 254 300 268 264 MB/s
Read 428
Write 305
Mixed 169
SusWrite 262
65% 291 MB/s
4K Read 27.2
4K Write 17
4K Mixed 30
89% 24.7 MB/s
DQ Read 299
DQ Write 211
DQ Mixed 120
126% 210 MB/s
50,665 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 43,101,439 SSDs tested.

Typical MX100 256GB Builds (Compare 7,770 builds) See popular component choices, score breakdowns and rankings.
Gaming 45%
Speed boat
Desktop 87%
Aircraft carrier
Workstation 38%
Jet ski

Motherboard: Asus Z97-A - $150

EDIT WITH CUSTOM PC BUILDER Value: 50% - Average Total price: $954

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 2021 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 6 years ago.


4 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


6 years ago.


2 years 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.

1058 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 i5-11400F $220Nvidia RTX 3060-Ti $400Crucial MX500 250GB $49
Intel Core i5-11600K $259Nvidia RTX 3070 $500Samsung 850 Evo 120GB $78
Intel Core i5-10600K $210Nvidia RTX 3080 $700Samsung 860 Evo 250GB $50
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $91SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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