Average Bench: 80.8% (214th of 908)

Based on 18,885 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 19.2% 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 Random Write Speed 82.4MB/s
Avg. 4K Random Read Speed 25.5MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 256GB is 34.2%. This is a relatively narrow range which indicates that the Crucial MX100 256GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Read Speed 122MB/s
Avg. 4K-64Thread Mixed IO Speed 36MB/s

Average Bench

(Based on 18,885 samples)
Min Avg Max
373 Read 496 522
307 Write 321 331
216 Mixed 370 397
87.8% 396 MB/s
Min Avg Max
18.3 4K Read 25.5 30.9
42.2 4K Write 82.4 115
13.7 4K Mixed 24.8 33.4
114% 44.2 MB/s
Min Avg Max
21.7 DQ Read 122 215
73.6 DQ Write 197 301
13.9 DQ Mixed 36 52.6
62% 118 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
95GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 513
Write 329
Mixed 391
91% 411 MB/s
4K Read 27
4K Write 77.9
4K Mixed 31.1
122% 45.3 MB/s
DQ Read 174
DQ Write 186
DQ Mixed 54.3
75% 138 MB/s
215GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 517
Write 320
Mixed 387
90% 408 MB/s
4K Read 28.3
4K Write 94.3
4K Mixed 20
118% 47.5 MB/s
DQ Read 29.3
DQ Write 292
DQ Mixed 19.8
57% 114 MB/s
66GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 513
Write 328
Mixed 384
90% 408 MB/s
4K Read 20.2
4K Write 81.5
4K Mixed 25.6
106% 42.4 MB/s
DQ Read 146
DQ Write 147
DQ Mixed 47.1
63% 113 MB/s
115GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 374
Write 331
Mixed 347
78% 351 MB/s
4K Read 15.8
4K Write 42.2
4K Mixed 21
73% 26.3 MB/s
DQ Read 158
DQ Write 127
DQ Mixed 47.8
62% 111 MB/s
18,885 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,038,103 SSDs tested.

Typical MX100 256GB Builds (Compare 6,440 builds) See popular component choices, score breakdowns and rankings.
Gaming 63%
Desktop 77%
Workstation 57%

Motherboard: Asus Z97-A - $143

EDIT WITH CUSTOM PC BUILDER Value: 71% - Very good 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 (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 userbenchmark.com.
  • - 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.
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.


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

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

Added 3 years ago.


12 months ago.

Pretty good


11 months 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


3 years ago.

908 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.
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Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
Intel Core i5-8600K $243AMD RX 480 $400Samsung 850 Pro 256GB $120
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $195SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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