Average Bench: 81.9% (441st of 1058)

Based on 54,389 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 18.0% 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 144MB/s
Avg. 4K Random Mixed IO Speed 36.8MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 256GB is 36.6%. This is a relatively wide range which indicates that the Crucial MX100 256GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 231MB/s
Avg. Sequential Mixed IO Speed 290MB/s

Average Bench

(Based on 54,389 samples)
Min Avg Max
339 Read 418 456
290 Write 320 332
254 Mixed 290 316
98.3 SusWrite 231 330
70.4% 315 MB/s
Min Avg Max
19.2 4K Read 26.5 30.5
41.4 4K Write 86.1 118
25 4K Mixed 36.8 44
133% 49.8 MB/s
Min Avg Max
163 DQ Read 184 267
103 DQ Write 269 313
81.5 DQ Mixed 144 183
132% 199 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
158GB free
Firmware: MU02
SusWrite @10s intervals: 322 320 322 322 325 324 MB/s
Read 433
Write 327
Mixed 301
SusWrite 322
78% 346 MB/s
4K Read 28.4
4K Write 87
4K Mixed 38.5
138% 51.3 MB/s
DQ Read 169
DQ Write 312
DQ Mixed 149
139% 210 MB/s
154GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 257 234 262 269 272 266 MB/s
Read 434
Write 326
Mixed 301
SusWrite 260
74% 330 MB/s
4K Read 27.1
4K Write 85.2
4K Mixed 38.5
136% 50.3 MB/s
DQ Read 171
DQ Write 307
DQ Mixed 135
132% 204 MB/s
85GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 156 192 179 173 172 177 MB/s
Read 431
Write 335
Mixed 316
SusWrite 175
70% 314 MB/s
4K Read 29.2
4K Write 98.4
4K Mixed 40.8
149% 56.1 MB/s
DQ Read 185
DQ Write 314
DQ Mixed 146
140% 215 MB/s
118GB free (System drive)
Firmware: MU03
SusWrite @10s intervals: 315 224 218 214 211 215 MB/s
Read 441
Write 326
Mixed 297
SusWrite 233
72% 324 MB/s
4K Read 27.2
4K Write 80.5
4K Mixed 37.2
132% 48.3 MB/s
DQ Read 200
DQ Write 309
DQ Mixed 138
137% 216 MB/s
54,389 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 45,502,533 SSDs tested.

Typical MX100 256GB Builds (Compare 8,352 builds) See popular component choices, score breakdowns and rankings.
Gaming 45%
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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) August 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 7 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


7 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 i5-11600K $270Nvidia RTX 3070 $500Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia RTX 3080 $700Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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