Average Bench: 75.5% (542nd of 1058)

Based on 8,379 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 24.5% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial MX100 128GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 150MB/s
Avg. 4K Random Write Speed 85.9MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 128GB is 32.4%. This is a relatively narrow range which indicates that the Crucial MX100 128GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 142MB/s
Avg. Sequential Write Speed 178MB/s

Average Bench

(Based on 8,379 samples)
Min Avg Max
334 Read 431 475
148 Write 178 187
190 Mixed 216 232
71.9 SusWrite 142 183
53.4% 242 MB/s
Min Avg Max
19.2 4K Read 26.1 30.3
41.7 4K Write 85.9 114
23.4 4K Mixed 34.5 41.2
129% 48.8 MB/s
Min Avg Max
171 DQ Read 284 316
89.4 DQ Write 157 186
88.6 DQ Mixed 150 170
131% 197 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
39GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 146 139 136 137 134 133 MB/s
Read 435
Write 182
Mixed 225
SusWrite 138
54% 245 MB/s
4K Read 25.7
4K Write 101
4K Mixed 39
142% 55.1 MB/s
DQ Read 312
DQ Write 138
DQ Mixed 170
141% 207 MB/s
48GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 162 150 143 155 154 155 MB/s
Read 426
Write 181
Mixed 216
SusWrite 153
54% 244 MB/s
4K Read 22.3
4K Write 106
4K Mixed 27.2
124% 51.7 MB/s
DQ Read 298
DQ Write 165
DQ Mixed 158
137% 207 MB/s
15GB free
Firmware: MU01
SusWrite @10s intervals: 91 72 48 40 43 41 MB/s
Read 406
Write 185
Mixed 213
SusWrite 55.7
47% 215 MB/s
4K Read 25.8
4K Write 81.9
4K Mixed 34.8
127% 47.5 MB/s
DQ Read 317
DQ Write 131
DQ Mixed 167
139% 205 MB/s
53GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 149 139 153 152 148 152 MB/s
Read 391
Write 182
Mixed 216
SusWrite 149
52% 234 MB/s
4K Read 19.1
4K Write 70.8
4K Mixed 20.9
93% 36.9 MB/s
DQ Read 261
DQ Write 182
DQ Mixed 147
130% 197 MB/s
8,379 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 43,096,809 SSDs tested.

Typical MX100 128GB Builds (Compare 8,835 builds) See popular component choices, score breakdowns and rankings.
Gaming 55%
Desktop 91%
Nuclear submarine
Workstation 47%

Motherboard: Asus PRIME Z270-P - $140

EDIT WITH CUSTOM PC BUILDER Value: 62% - Good Total price: $962

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.
  • - 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

Feature-packed capacity. Proven reliability...

Added 6 years ago.

Below average

6 years ago.

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 $102SanDisk Extreme 32GB $28
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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