Average Bench: 99.8% (223rd of 1034)

Based on 3,011 user benchmarks.  Model: CT480BX300SSD1

Excellent average bench

The Crucial BX300 480GB averaged just 0.1% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial BX300 480GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 259MB/s
Avg. 4K Random Mixed IO Speed 40.5MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial BX300 480GB is 45.2%. This is a relatively wide range which indicates that the Crucial BX300 480GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 376MB/s
Avg. Sustained Write Speed 393MB/s

Average Bench

(Based on 3,011 samples)
Min Avg Max
375 Read 480 516
217 Write 423 482
239 Mixed 376 431
240 SusWrite 393 478
93.9% 418 MB/s
Min Avg Max
17.9 4K Read 28 33.7
34.7 4K Write 81 124
25.3 4K Mixed 40.5 51.7
137% 49.9 MB/s
Min Avg Max
218 DQ Read 343 390
130 DQ Write 288 366
150 DQ Mixed 259 310
210% 297 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
250GB free
Firmware: M2CR010
SusWrite @10s intervals: 482 484 485 486 486 486 MB/s
Read 518
Write 486
Mixed 430
SusWrite 485
108% 480 MB/s
4K Read 34.3
4K Write 127
4K Mixed 52.7
187% 71.3 MB/s
DQ Read 387
DQ Write 345
DQ Mixed 303
245% 345 MB/s
144GB free
Firmware: M2CR010
SusWrite @10s intervals: 467 474 475 478 478 479 MB/s
Read 508
Write 448
Mixed 384
SusWrite 475
102% 454 MB/s
4K Read 34.1
4K Write 126
4K Mixed 52.6
186% 70.9 MB/s
DQ Read 387
DQ Write 347
DQ Mixed 301
244% 345 MB/s
352GB free
Firmware: M2CR010
SusWrite @10s intervals: 431 440 283 432 448 417 MB/s
Read 486
Write 414
Mixed 389
SusWrite 408
95% 424 MB/s
4K Read 30.3
4K Write 104
4K Mixed 46.9
161% 60.3 MB/s
DQ Read 384
DQ Write 339
DQ Mixed 296
240% 339 MB/s
3,011 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,488,353 SSDs tested.


Approx. $50 @ launch in Aug '17
AmazonUS $1659 days
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Typical BX300 480GB Builds (Compare 10,019 builds) See popular component choices, score breakdowns and rankings.
Gaming 58%
Desktop 95%
Nuclear submarine
Workstation 54%

Motherboard: MSI Z370-A PRO (MS-7B48) - $118

EDIT WITH CUSTOM PC BUILDER Value: 63% - Good Total price: $914

Popular BX300 480GB 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 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: Silicon Motion SM2258. Flash Memory: Micron 3D MLC

You dont need a new computer, just the Crucial BX300...

Added 2 years ago.

1034 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 $193Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $43
Intel Core i5-9400F $143Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $290Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $43
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $66SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $64SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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