Average Bench: 66.8% (651st of 1016)

Based on 2,492 user benchmarks.  Models: M4-CT512M4SSD2, M4-CT512 M4SSD2, M4-CT512M4SSD1, M4-CT512 M4-CT512M4SSD2

Above average average bench

The Crucial M4 512GB averaged 33.2% 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 74.2MB/s
Avg. Sequential Read Speed 457MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial M4 512GB is 33.6%. This is a relatively narrow range which indicates that the Crucial M4 512GB performs reasonably consistently under varying real world conditions.


Avg. Sustained Write Speed 202MB/s
Avg. 4K-64Thread Read Speed 139MB/s

Average Bench

(Based on 2,492 samples)
Min Avg Max
350 Read 457 503
208 Write 249 280
228 Mixed 275 303
83.5 SusWrite 202 261
65.8% 296 MB/s
Min Avg Max
10.7 4K Read 19.7 23.7
13.9 4K Write 74.2 109
13.3 4K Mixed 23.1 27.9
98.7% 39 MB/s
Min Avg Max
85 DQ Read 139 196
79.9 DQ Write 144 234
19.9 DQ Mixed 47.9 54
61.8% 110 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
68GB free
Firmware: 070H
SusWrite @10s intervals: 253 251 252 251 252 250 MB/s
Read 497
Write 278
Mixed 296
SusWrite 252
74% 331 MB/s
4K Read 22.7
4K Write 88.7
4K Mixed 26.9
116% 46.1 MB/s
DQ Read 118
DQ Write 109
DQ Mixed 51.8
56% 93.1 MB/s
453GB free (System drive)
Firmware: 040H
SusWrite @10s intervals: 218 239 198 238 228 218 MB/s
Read 471
Write 254
Mixed 282
SusWrite 223
68% 307 MB/s
4K Read 18.1
4K Write 56.8
4K Mixed 22.8
87% 32.6 MB/s
DQ Read 120
DQ Write 105
DQ Mixed 51.3
55% 92.3 MB/s
2,492 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 21,412,029 SSDs tested.


AmazonUS $745 months
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Typical M4 512GB Builds (Compare 1,466 builds) See popular component choices, score breakdowns and rankings.
Gaming 44%
Speed boat
Desktop 44%
Speed boat
Workstation 26%

Motherboard: Asus P7P55D-E PRO

EDIT WITH CUSTOM PC BUILDER Value: 46% - Average Total price: $543

Popular M4 512GB 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) January 2020 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 88SS9174-BLD2. Flash Memory: Micron Synchronous 25nm MLC

Added n/a ago.

1016 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 i5-9600K $205Nvidia GTX 1660S (Super) $240Crucial MX500 250GB $45
Intel Core i5-9400F $150Nvidia GTX 1650S (Super) $160Samsung 850 Evo 120GB $78
Intel Core i7-9700K $375Nvidia RTX 2060 $349Samsung 850 Pro 512GB $249
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $80SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $14
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