Average Bench: 68.9% (335th of 848)

Based on 4,104 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 31.1% 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 22.6MB/s
Avg. Sequential Read Speed 464MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 275GB is 30.5%. 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 25.1MB/s
Avg. 4K-64Thread Read Speed 130MB/s

Average Bench

(Based on 4,104 samples)
Min Avg Max
419 Read 464 485
172 Write 300 337
163 Mixed 309 339
79.1% 358 MB/s
Min Avg Max
16.1 4K Read 22.6 27.8
25.8 4K Write 60.1 84.1
7.78 4K Mixed 16.7 24.2
87.5% 33.1 MB/s
Min Avg Max
19.8 DQ Read 130 230
42.2 DQ Write 148 225
8.51 DQ Mixed 25.1 40.1
50.4% 101 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
191GB free
Firmware: M0CR040 Max speed: SATA 3.0 600 MB/s
Read 483
Write 341
Mixed 336
86% 387 MB/s
4K Read 25.3
4K Write 62.4
4K Mixed 22.5
100% 36.7 MB/s
DQ Read 216
DQ Write 147
DQ Mixed 12.8
55% 125 MB/s
50GB free
Firmware: M0CR021 Max speed: SATA 3.0 600 MB/s
Read 476
Write 335
Mixed 334
85% 382 MB/s
4K Read 26.6
4K Write 76
4K Mixed 23.2
110% 41.9 MB/s
DQ Read 27.9
DQ Write 82.5
DQ Mixed 13.7
22% 41.3 MB/s
77GB free
Firmware: M0CR031 Max speed: SATA 3.0 600 MB/s
Read 470
Write 324
Mixed 336
84% 377 MB/s
4K Read 24.4
4K Write 45.4
4K Mixed 21.1
88% 30.3 MB/s
DQ Read 225
DQ Write 142
DQ Mixed 40.3
68% 136 MB/s
155GB free
Firmware: M0CR031 Max speed: SATA 3.0 600 MB/s
Read 484
Write 276
Mixed 151
66% 304 MB/s
4K Read 19
4K Write 73.8
4K Mixed 14.6
87% 35.8 MB/s
DQ Read 120
DQ Write 101
DQ Mixed 12.8
36% 78.1 MB/s
4,104 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,574,185 SSDs tested.


AmazonUS $94.991 day ago.
EbayUS $97.951 day ago.
NeweggUS $99.992 days ago.
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Typical MX300 275GB Builds (Compare 12,789 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 80%
Aircraft carrier
Workstation 64%

Motherboard: Asus Z170 PRO GAMING - $141

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $1,004

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.
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  • - RAM tests include: single/multi core bandwidth and latency.
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Solid State Drive Rankings (Price vs Performance) April 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 7 months ago.


7 months ago.


17 hrs ago.

My result is 84,8%

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848 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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