Average Bench: 72.2% (322nd of 908)

Based on 3,507 user benchmarks.  Models: Crucial_CT128MX1, Crucial_ CT128MX100SS, Crucial_ CT128MX100SSD1, Crucial_CT128MX100SSD1

The Crucial 128GB MX100 has the smallest capacity and is the slowest of the MX100 range. Comparing the 128GB and 256GB MX100s shows that the 256GB version has a 75% faster write speed. Within the MX100 range write speeds scale linearly with capacity, as a consequence, the 128GB version struggles to compete with similarly priced drives from other manufacturers. On the other hand, the 512GB version and to a lesser extent the 256GB version offer far better value for money. Overall the MX100 has an effective speed which is amongst the top 30% of 128GB drives so its not bad by any means but there are however both cheaper and faster alternatives available in the now extremely competitive 128GB SSD category. [Oct '14 SSDrivePro]


Good average bench

The Crucial MX100 128GB averaged 27.7% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Write Speed 85.1MB/s
Avg. 4K Random Read Speed 25.4MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 128GB is 31.4%. This is a relatively narrow range which indicates that the Crucial MX100 128GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 181MB/s
Avg. 4K-64Thread Mixed IO Speed 35.2MB/s

Average Bench

(Based on 3,507 samples)
Min Avg Max
361 Read 501 528
172 Write 181 187
148 Mixed 234 273
66.7% 305 MB/s
Min Avg Max
17.6 4K Read 25.4 30.6
39.9 4K Write 85.1 119
14.2 4K Mixed 24 32.7
114% 44.9 MB/s
Min Avg Max
22.1 DQ Read 171 311
57.9 DQ Write 141 181
12.9 DQ Mixed 35.2 50.1
59.3% 116 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
27GB free
Firmware: MU02 Max speed: SATA 3.0 600 MB/s
Read 529
Write 185
Mixed 266
71% 326 MB/s
4K Read 29.8
4K Write 97.5
4K Mixed 32.4
138% 53.2 MB/s
DQ Read 308
DQ Write 160
DQ Mixed 45.7
84% 171 MB/s
106GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 522
Write 181
Mixed 269
71% 324 MB/s
4K Read 28.5
4K Write 93.6
4K Mixed 25.7
126% 49.3 MB/s
DQ Read 242
DQ Write 182
DQ Mixed 17.8
66% 147 MB/s
54GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 503
Write 184
Mixed 253
68% 313 MB/s
4K Read 20.9
4K Write 94.8
4K Mixed 27.4
117% 47.7 MB/s
DQ Read 295
DQ Write 160
DQ Mixed 49.6
84% 168 MB/s
91GB free
Firmware: MU01 Max speed: SATA 3.0 600 MB/s
Read 483
Write 183
Mixed 261
68% 309 MB/s
4K Read 9.88
4K Write 13.2
4K Mixed 9
34% 10.7 MB/s
DQ Read 9.91
DQ Write 13.8
DQ Mixed 46.8
26% 23.5 MB/s
3,507 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 6,033,805 SSDs tested.

Typical MX100 128GB Builds (Compare 6,438 builds) See popular component choices, score breakdowns and rankings.
Gaming 63%
Desktop 75%
Workstation 56%

Motherboard: Asus Z97-A - $143

EDIT WITH CUSTOM PC BUILDER Value: 70% - Good Total price: $971

Popular MX100 128GB 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.

Feature-packed capacity. Proven reliability...

Added 3 years ago.

Poor (edit your comment) Add link

10 months ago.

nice little hdd :D!

Below average

3 years ago.


3 years ago.

not that bad

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 i5-8600K $235AMD RX 480 $400Samsung 850 Pro 256GB $160
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk 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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