Average Bench: 68.7% (339th of 848)

Based on 3,413 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 22.5MB/s
Avg. 4K Random Write Speed 60.1MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 275GB is 30.6%. 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 25.6MB/s
Avg. 4K-64Thread Read Speed 132MB/s

Average Bench

(Based on 3,413 samples)
Min Avg Max
363 Read 461 484
203 Write 298 336
171 Mixed 310 339
78.8% 356 MB/s
Min Avg Max
15.5 4K Read 22.5 28.2
26.4 4K Write 60.1 85
9.1 4K Mixed 17 24.4
87.7% 33.2 MB/s
Min Avg Max
20.3 DQ Read 132 230
43.9 DQ Write 146 223
9.53 DQ Mixed 25.6 40.2
50.7% 101 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
108GB free
Firmware: M0CR031 Max speed: SATA 3.0 600 MB/s
Read 481
Write 337
Mixed 333
85% 384 MB/s
4K Read 27.4
4K Write 81.9
4K Mixed 24.3
116% 44.5 MB/s
DQ Read 223
DQ Write 218
DQ Mixed 39.9
80% 160 MB/s
87GB free
Firmware: M0CR021 Max speed: SATA 3.0 600 MB/s
Read 486
Write 303
Mixed 325
82% 371 MB/s
4K Read 28.5
4K Write 89.8
4K Mixed 23.4
121% 47.2 MB/s
DQ Read 230
DQ Write 221
DQ Mixed 34.6
78% 162 MB/s
69GB free
Firmware: M0CR031 Max speed: SATA 3.0 600 MB/s
Read 482
Write 328
Mixed 163
71% 325 MB/s
4K Read 20.9
4K Write 69.4
4K Mixed 10.5
82% 33.6 MB/s
DQ Read 142
DQ Write 217
DQ Mixed 41.1
70% 133 MB/s
95GB free
Firmware: M0CR031 Max speed: SATA 3.0 600 MB/s
Read 465
Write 246
Mixed 312
75% 341 MB/s
4K Read 20.7
4K Write 62.6
4K Mixed 11.9
80% 31.7 MB/s
DQ Read 198
DQ Write 179
DQ Mixed 13.6
58% 130 MB/s
3,413 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,386,282 SSDs tested.


AmazonUS $94.9912 mins ago.
NeweggUS $94.992 hrs ago.
EbayUS $99.9531 mins ago.
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Typical MX300 275GB Builds (Compare 11,983 builds) See popular component choices, score breakdowns and rankings.
Gaming 94%
Nuclear submarine
Desktop 80%
Aircraft carrier
Workstation 64%

Motherboard: Asus Z170 PRO GAMING - $149

EDIT WITH CUSTOM PC BUILDER Value: 89% - Excellent Total price: $1,024

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.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
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Solid State Drive Rankings (Price vs Performance) March 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 6 months ago.


6 months ago.


3 days 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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