Average Bench: 68.5% (363rd of 873)

Based on 11,670 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 31.5% 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 22.4MB/s
Avg. Sequential Read Speed 464MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 275GB is 28.4%. 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 27MB/s
Avg. 4K-64Thread Read Speed 135MB/s

Average Bench

(Based on 11,670 samples)
Min Avg Max
414 Read 464 484
234 Write 300 337
166 Mixed 311 339
79.3% 358 MB/s
Min Avg Max
15.8 4K Read 22.4 27.4
27.4 4K Write 57.1 78.7
9.28 4K Mixed 17.3 24.1
86.3% 32.3 MB/s
Min Avg Max
19.6 DQ Read 135 230
44.1 DQ Write 135 219
9.32 DQ Mixed 27 40.4
50% 99.1 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
38GB free
Firmware: M0CR021 Max speed: SATA 3.0 600 MB/s
Read 472
Write 265
Mixed 299
76% 345 MB/s
4K Read 24.9
4K Write 59.3
4K Mixed 22.3
98% 35.5 MB/s
DQ Read 229
DQ Write 153
DQ Mixed 33.5
68% 139 MB/s
230GB free
Firmware: M0CR060 Max speed: SATA 3.0 600 MB/s
Read 475
Write 332
Mixed 336
84% 381 MB/s
4K Read 21.9
4K Write 55.2
4K Mixed 17.9
85% 31.7 MB/s
DQ Read 187
DQ Write 120
DQ Mixed 10.4
46% 106 MB/s
152GB free
Firmware: M0CR040 Max speed: SATA 3.0 600 MB/s
Read 481
Write 302
Mixed 324
82% 369 MB/s
4K Read 26.4
4K Write 63.4
4K Mixed 20.5
100% 36.8 MB/s
DQ Read 27.1
DQ Write 68.2
DQ Mixed 13.6
20% 36.3 MB/s
181GB free
Firmware: M0CR040 Max speed: SATA 3.0 600 MB/s
Read 477
Write 284
Mixed 320
80% 360 MB/s
4K Read 24.4
4K Write 61.6
4K Mixed 13.3
87% 33.1 MB/s
DQ Read 26.3
DQ Write 199
DQ Mixed 29.9
48% 85.2 MB/s
11,670 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,236,153 SSDs tested.


EbayUS $8515 mins
AmazonUS $909 mins
NeweggUS $903 days
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Typical MX300 275GB Builds (Compare 16,664 builds) See popular component choices, score breakdowns and rankings.
Gaming 93%
Nuclear submarine
Desktop 80%
Aircraft carrier
Workstation 63%

Motherboard: Asus Z170 PRO GAMING - $157

EDIT WITH CUSTOM PC BUILDER Value: 78% - Very good Total price: $1,177

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.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) January 2018 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 16 months ago.


3 months ago.

My result is 84,8%


16 months ago.


2 months ago.

Best in budget

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873 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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