Average Bench: 51.6% (646th of 885)

more Based on 2,564 user benchmarks.  Models: C400-MTFDDAK128MAM, C400-MTFDDAK128M, Micron C400 RealSSD 2.5" 7mm 128GB, MTFDDAK128MAM-1J1, C400-MTFDDAA128MAM, MTFDDAK1 MTFDDAK128MAM-1J, C400-MTFDDAC128MAM, MTFDDAK128MAM-1J

Average average bench

The Micron C400 RealSSD 128GB averaged 48.3% 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 Read Speed 21MB/s
Avg. 4K Random Write Speed 57.7MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Micron C400 RealSSD 128GB is 20.9%. This is a relatively narrow range which indicates that the Micron C400 RealSSD 128GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 7.8MB/s
Avg. 4K Random Mixed IO Speed 5.64MB/s

Average Bench

(Based on 2,564 samples)
Min Avg Max
360 Read 424 482
166 Write 182 191
181 Mixed 249 272
62.6% 285 MB/s
Min Avg Max
13.5 4K Read 21 28
28.2 4K Write 57.7 94
3.92 4K Mixed 5.64 9.3
69.6% 28.1 MB/s
Min Avg Max
18 DQ Read 88.8 236
43.7 DQ Write 98.7 159
3.85 DQ Mixed 7.8 13.8
29.6% 65.1 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
11GB free
Firmware: 010G Max speed: SATA 3.0 600 MB/s
Read 434
Write 187
Mixed 261
65% 294 MB/s
4K Read 26.2
4K Write 75.7
4K Mixed 5.84
87% 35.9 MB/s
DQ Read 124
DQ Write 98.5
DQ Mixed 7.5
34% 76.6 MB/s
11GB free
Firmware: 010G Max speed: SATA 3.0 600 MB/s
Read 429
Write 187
Mixed 263
64% 293 MB/s
4K Read 24.1
4K Write 70.6
4K Mixed 4.36
80% 33 MB/s
DQ Read 124
DQ Write 103
DQ Mixed 4.42
33% 77.2 MB/s
11GB free
Firmware: 010G Max speed: SATA 3.0 600 MB/s
Read 410
Write 186
Mixed 254
62% 283 MB/s
4K Read 23.3
4K Write 82.8
4K Mixed 4.39
85% 36.8 MB/s
DQ Read 23
DQ Write 105
DQ Mixed 3.56
20% 44 MB/s
12GB free
Firmware: 010G Max speed: SATA 3.0 600 MB/s
Read 431
Write 186
Mixed 261
64% 293 MB/s
4K Read 23
4K Write 75.1
4K Mixed 5.62
82% 34.6 MB/s
DQ Read 22.5
DQ Write 65.1
DQ Mixed 4.29
15% 30.6 MB/s
2,564 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,626,618 SSDs tested.

Typical C400 RealSSD 128GB Builds (Compare 2,127 builds) See popular component choices, score breakdowns and rankings.
Gaming 19%
Desktop 54%
Workstation 39%
Jet ski

System: HP Z420 Workstation

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $345

Popular C400 RealSSD 128GB systems:

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.

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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.
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Solid State Drive Rankings (Price vs Performance) February 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.


885 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 i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $87
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $146
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $140
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $200SanDisk Extreme 16GB $18
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