Average Bench: 82.9% (378th of 1011)

Based on 34,179 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 17.0% 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 141MB/s
Avg. 4K Random Mixed IO Speed 37.7MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 256GB is 37.7%. This is a relatively wide range which indicates that the Crucial MX100 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 232MB/s
Avg. 4K-64Thread Read Speed 177MB/s

Average Bench

(Based on 34,179 samples)
Min Avg Max
315 Read 413 453
282 Write 319 333
241 Mixed 287 315
95.2 SusWrite 232 330
70% 313 MB/s
Min Avg Max
19.7 4K Read 26.7 31.1
50 4K Write 91.3 125
26.4 4K Mixed 37.7 45.4
137% 51.9 MB/s
Min Avg Max
30.6 DQ Read 177 270
117 DQ Write 273 313
43.4 DQ Mixed 141 182
130% 197 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
184GB free
Firmware: MU03
SusWrite @10s intervals: 321 326 326 327 327 325 MB/s
Read 432
Write 322
Mixed 293
SusWrite 325
77% 343 MB/s
4K Read 29.8
4K Write 110
4K Mixed 41.2
156% 60.2 MB/s
DQ Read 178
DQ Write 310
DQ Mixed 148
140% 212 MB/s
142GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 279 296 306 308 311 298 MB/s
Read 448
Write 323
Mixed 300
SusWrite 300
77% 343 MB/s
4K Read 29.9
4K Write 90.9
4K Mixed 36
140% 52.3 MB/s
DQ Read 205
DQ Write 306
DQ Mixed 177
156% 230 MB/s
128GB free (System drive)
Firmware: MU02
SusWrite @10s intervals: 261 223 203 204 210 201 MB/s
Read 442
Write 329
Mixed 286
SusWrite 217
71% 318 MB/s
4K Read 27.6
4K Write 111
4K Mixed 42.6
155% 60.4 MB/s
DQ Read 174
DQ Write 310
DQ Mixed 122
127% 202 MB/s
38GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 141 116 69 75 63 65 MB/s
Read 287
Write 223
Mixed 199
SusWrite 88.2
44% 199 MB/s
4K Read 19.4
4K Write 73.8
4K Mixed 33.3
111% 42.2 MB/s
DQ Read 189
DQ Write 302
DQ Mixed 142
137% 211 MB/s
34,179 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 19,133,448 SSDs tested.

Typical MX100 256GB Builds (Compare 13,668 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 72%
Workstation 50%

Motherboard: Asus Z97-A - $150

EDIT WITH CUSTOM PC BUILDER Value: 45% - Average Total price: $1,013

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) November 2019 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.


2 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.


8 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.

1011 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 $148Nvidia GTX 1660S (Super) $234Crucial MX500 250GB $45
Intel Core i5-9600K $210Nvidia GTX 1660 $210Samsung 850 Evo 120GB $150
Intel Core i7-9700K $340Nvidia GTX 1660-Ti $260Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $612SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $75Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Ultra Fit 32GB $14
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