Average Bench: 92.2% (293rd of 1058)

Based on 5,329 user benchmarks.  Models: Crucial_CT512M550SSD1, Crucial_ CT512M550SSD, Crucial_ CT512M550SSD1

Excellent average bench

The Crucial M550 512GB averaged just 7.8% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial M550 512GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 202MB/s
Avg. 4K Random Mixed IO Speed 37.5MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial M550 512GB is 46.9%. This is a relatively wide range which indicates that the Crucial M550 512GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 294MB/s
Avg. Sustained Write Speed 332MB/s

Average Bench

(Based on 5,329 samples)
Min Avg Max
327 Read 422 464
333 Write 424 470
240 Mixed 294 322
140 SusWrite 332 460
82.8% 368 MB/s
Min Avg Max
19.2 4K Read 26.5 30.2
43.7 4K Write 86.7 119
25.8 4K Mixed 37.5 44.4
134% 50.2 MB/s
Min Avg Max
167 DQ Read 319 384
111 DQ Write 294 361
84.2 DQ Mixed 202 232
180% 272 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
38GB free (System drive)
Firmware: MU02
SusWrite @10s intervals: 208 220 66 55 73 62 MB/s
Read 386
Write 389
Mixed 302
SusWrite 114
67% 298 MB/s
4K Read 26.5
4K Write 81.2
4K Mixed 36.4
130% 48 MB/s
DQ Read 337
DQ Write 340
DQ Mixed 227
201% 301 MB/s
195GB free
Firmware: MU01
SusWrite @10s intervals: 340 317 303 300 291 290 MB/s
Read 323
Write 343
Mixed 258
SusWrite 307
69% 308 MB/s
4K Read 24.3
4K Write 40.3
4K Mixed 29.1
96% 31.2 MB/s
DQ Read 248
DQ Write 104
DQ Mixed 140
113% 164 MB/s
5,329 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,299,915 SSDs tested.


AmazonUS $2832 years
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Typical M550 512GB Builds (Compare 2,734 builds) See popular component choices, score breakdowns and rankings.
Gaming 40%
Speed boat
Desktop 79%
Workstation 34%
Sail boat

Motherboard: Asus P9X79 - $300

EDIT WITH CUSTOM PC BUILDER Value: 40% - Below average Total price: $1,273

Popular M550 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.
Solid State Drive Rankings (Price vs Performance) September 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 Synchronous 20nm MLC

Added n/a 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 i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $394Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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