Average Bench: 68.8% (348th of 863)

Based on 9,790 user benchmarks.  Models: Crucial_CT275MX300SSD1, Crucial_ CT275MX300SSD1

The 275GB Crucial MX300 supersedes the MX200. Unlike its predecessor, the MX300 is TLC based and therefore suffers from weak write speeds in comparison to MLC drives. The MX300 utilises a sophisticated algorithm to enable fast burst write speeds provided that there is sufficient free space on the disk but as the drive fills up write performance drops to the relatively poor levels seen on other TLC drives (similar to mechanical drives). At current prices (70 USD) the MX300 competes well with other low end drives such as the OCZ Trion, Adata SP550 and Samsung 750 EVO. As stocks build the MX300 is likely to see further price cuts, so it could become a very interesting value proposition. See the current value leaders here[Sep '16 SSDrivePro]


Above average average bench

The Crucial MX300 275GB averaged 31.2% 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 Read Speed 22.7MB/s
Avg. Sequential Read Speed 466MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 275GB is 32.1%. This is a relatively narrow range which indicates that the Crucial MX300 275GB performs reasonably consistently under varying real world conditions.


Avg. 4K-64Thread Mixed IO Speed 25.2MB/s
Avg. 4K-64Thread Read Speed 128MB/s

Average Bench

(Based on 9,790 samples)
Min Avg Max
421 Read 466 485
189 Write 300 339
161 Mixed 308 339
79.1% 358 MB/s
Min Avg Max
15.8 4K Read 22.7 28
28 4K Write 59.2 84.1
8.59 4K Mixed 17.1 24.5
87.5% 33 MB/s
Min Avg Max
19.4 DQ Read 128 230
45 DQ Write 138 220
8.63 DQ Mixed 25.2 40.3
48.8% 97.3 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
234GB free
Firmware: M0CR060 Max speed: SATA 3.0 600 MB/s
Read 471
Write 334
Mixed 336
84% 380 MB/s
4K Read 23.7
4K Write 56.7
4K Mixed 10.8
80% 30.4 MB/s
DQ Read 153
DQ Write 151
DQ Mixed 10.8
47% 105 MB/s
201GB free
Firmware: M0CR060 Max speed: SATA 3.0 600 MB/s
Read 473
Write 281
Mixed 309
78% 354 MB/s
4K Read 23.2
4K Write 49.7
4K Mixed 11.7
76% 28.2 MB/s
DQ Read 23.3
DQ Write 51.3
DQ Mixed 11.7
16% 28.7 MB/s
95GB free
Firmware: M0CR040 Max speed: SATA 3.0 600 MB/s
Read 297
Write 141
Mixed 87.8
38% 175 MB/s
4K Read 17.6
4K Write 38.7
4K Mixed 7.97
57% 21.4 MB/s
DQ Read 20.3
DQ Write 60.5
DQ Mixed 9.03
16% 29.9 MB/s
9,790 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 4,485,966 SSDs tested.


AmazonUS $79.999 mins ago.
NeweggUS $79.996 hrs ago.
EbayUS $89.3915 mins ago.
Send price feedback
Typical MX300 275GB Builds (Compare 14,357 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 80%
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 80% - Excellent Total price: $1,139

Popular MX300 275GB 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.

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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.
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  • - RAM tests include: single/multi core bandwidth and latency.
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Solid State Drive Rankings (Price vs Performance) November 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC.

Instant performance that lasts....

Added 14 months ago.

Average (edit your comment) Add link

1 day ago.

need to free up space for better performance score.


1 month ago.

My result is 84,8%


14 months ago.


27 days ago.

Best in budget

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863 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.

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