Average Bench: 76.1% (485th of 1011)

Based on 6,126 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 23.8% 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 147MB/s
Avg. 4K Random Write Speed 91MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX100 128GB is 30.9%. 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 135MB/s
Avg. Sequential Write Speed 179MB/s

Average Bench

(Based on 6,126 samples)
Min Avg Max
355 Read 432 472
170 Write 179 187
194 Mixed 217 231
68.4 SusWrite 135 183
53.2% 241 MB/s
Min Avg Max
18.5 4K Read 26.4 30.7
46.5 4K Write 91 122
23.9 4K Mixed 35.3 41.6
134% 50.9 MB/s
Min Avg Max
99.7 DQ Read 278 316
79.7 DQ Write 153 186
42.4 DQ Mixed 147 170
128% 193 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
68GB free
Firmware: MU01
SusWrite @10s intervals: 174 177 178 180 180 180 MB/s
Read 402
Write 178
Mixed 204
SusWrite 178
53% 241 MB/s
4K Read 24.8
4K Write 105
4K Mixed 37.4
141% 55.8 MB/s
DQ Read 297
DQ Write 181
DQ Mixed 166
143% 215 MB/s
19GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 134 91 84 85 84 81 MB/s
Read 470
Write 186
Mixed 230
SusWrite 93.2
54% 245 MB/s
4K Read 29.9
4K Write 97.3
4K Mixed 39.7
148% 55.6 MB/s
DQ Read 222
DQ Write 127
DQ Mixed 138
112% 162 MB/s
26GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 129 123 120 117 111 108 MB/s
Read 404
Write 185
Mixed 224
SusWrite 118
52% 233 MB/s
4K Read 23.9
4K Write 116
4K Mixed 32.1
139% 57.3 MB/s
DQ Read 314
DQ Write 129
DQ Mixed 168
138% 203 MB/s
31GB free (System drive)
Firmware: MU01
SusWrite @10s intervals: 139 134 136 137 129 125 MB/s
Read 403
Write 177
Mixed 216
SusWrite 133
51% 232 MB/s
4K Read 22.6
4K Write 66.5
4K Mixed 30.2
108% 39.8 MB/s
DQ Read 255
DQ Write 170
DQ Mixed 144
126% 190 MB/s
6,126 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 17,689,511 SSDs tested.

Typical MX100 128GB Builds (Compare 12,902 builds) See popular component choices, score breakdowns and rankings.
Gaming 50%
Desktop 70%
Workstation 49%

Motherboard: Asus Z97-A - $150

EDIT WITH CUSTOM PC BUILDER Value: 45% - Average 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.
  • - 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) September 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

Feature-packed capacity. Proven reliability...

Added 4 years ago.

Below average

4 years ago.

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 $140Nvidia GTX 1660 $220Samsung 850 Evo 250GB $70
Intel Core i5-9600K $225Nvidia GTX 1660-Ti $275Samsung 850 Evo 500GB $105
Intel Core i7-9700K $350Nvidia RTX 2060S (Super) $429Samsung 850 Pro 256GB $230
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $88
WD Blue 1TB (2012) $37G.SKILL Trident Z DDR4 3200 C14 4x16GB $799SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $64Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 16GB $24
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