Average Bench: 86% (374th of 1058)

Based on 93,715 user benchmarks.  Models: Crucial_ CT525MX300SSD1, Crucial_CT525MX300SSD1

Very good average bench

The Crucial MX300 525GB averaged just 14.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial MX300 525GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 277MB/s
Avg. 4K Random Mixed IO Speed 35.5MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 525GB is 37.4%. This is a relatively wide range which indicates that the Crucial MX300 525GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 289MB/s
Avg. Sequential Mixed IO Speed 351MB/s

Average Bench

(Based on 93,715 samples)
Min Avg Max
319 Read 402 446
241 Write 403 482
215 Mixed 351 390
199 SusWrite 289 335
81.3% 361 MB/s
Min Avg Max
17.4 4K Read 24.5 28.2
42.3 4K Write 85.1 116
23.3 4K Mixed 35.5 42.4
128% 48.4 MB/s
Min Avg Max
181 DQ Read 305 351
105 DQ Write 272 328
110 DQ Mixed 277 330
211% 285 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
25GB free
Firmware: M0CR021
SusWrite @10s intervals: 434 248 233 248 239 139 MB/s
Read 416
Write 392
Mixed 390
SusWrite 257
82% 364 MB/s
4K Read 27.2
4K Write 99.3
4K Mixed 40.2
145% 55.6 MB/s
DQ Read 346
DQ Write 325
DQ Mixed 330
249% 334 MB/s
489GB free
Firmware: M0CR060
SusWrite @10s intervals: 418 414 385 249 249 250 MB/s
Read 409
Write 449
Mixed 352
SusWrite 328
87% 385 MB/s
4K Read 22.8
4K Write 102
4K Mixed 35.4
134% 53.2 MB/s
DQ Read 338
DQ Write 314
DQ Mixed 326
245% 326 MB/s
67GB free (System drive)
Firmware: M0CR021
SusWrite @10s intervals: 285 333 232 241 235 223 MB/s
Read 418
Write 472
Mixed 367
SusWrite 258
85% 379 MB/s
4K Read 27
4K Write 88.4
4K Mixed 38.6
137% 51.3 MB/s
DQ Read 342
DQ Write 311
DQ Mixed 324
244% 326 MB/s
93,715 MORE »

 Market Share (See Leaders)

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


MSRP ≈ $130 @ launch in Jun '16
EbayUS $2652 mins
AmazonUS $33017 mins
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Typical MX300 525GB Builds (Compare 21,582 builds) See popular component choices, score breakdowns and rankings.
Gaming 70%
Desktop 88%
Aircraft carrier
Workstation 60%

Motherboard: Asus Z170 PRO GAMING - $295

EDIT WITH CUSTOM PC BUILDER Value: 51% - Above average Total price: $1,356

Popular MX300 525GB 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 88SS1074. Flash Memory: Micron 3D TLC

Instant performance that lasts...

Added 5 years ago.

Excellent (edit your comment) Add link

12 months ago.

fast as hell nothing goes wrong.........


2 years ago.

Really good SSD for the money, this drive is capable of speeding up even a slow Acer All in One.


2 years ago.

Nice ssd


3 years ago.

Really fast write/read speed

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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