Average Bench: 68.5% - 317th / 814

Based on 1,763 user benchmarks.  Model: 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 22MB/s
Avg. Sequential Read Speed 459MB/s
See where your SSD ranks →

Above average consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 275GB is 33.4%. 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 25.2MB/s
Avg. 4K-64Thread Read Speed 129MB/s

Average Bench

(Based on 1,763 samples)
Min Avg Max
341 Read 459 484
238 Write 302 336
189 Mixed 312 339
79.2% 358 MB/s
Min Avg Max
15.9 4K Read 22 27.5
26.8 4K Write 58.7 83.4
8.66 4K Mixed 17.1 24.3
86.3% 32.6 MB/s
Min Avg Max
19.7 DQ Read 129 230
40 DQ Write 145 223
9.33 DQ Mixed 25.2 39.9
49.9% 99.7 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
49GB free
Firmware: M0CR040 Max speed: SATA 3.0 600 MB/s
Read 485
Write 335
Mixed 311
83% 377 MB/s
4K Read 27.3
4K Write 75.5
4K Mixed 21.2
108% 41.3 MB/s
DQ Read 213
DQ Write 206
DQ Mixed 14.1
64% 144 MB/s
175GB free
Firmware: M0CR021 Max speed: SATA 3.0 600 MB/s
Read 478
Write 331
Mixed 335
84% 381 MB/s
4K Read 26.9
4K Write 72.5
4K Mixed 13.7
97% 37.7 MB/s
DQ Read 27.3
DQ Write 218
DQ Mixed 13.7
43% 86.2 MB/s
208GB free
Firmware: M0CR031 Max speed: SATA 3.0 600 MB/s
Read 478
Write 270
Mixed 314
78% 354 MB/s
4K Read 24.2
4K Write 59.3
4K Mixed 13.3
85% 32.3 MB/s
DQ Read 25.9
DQ Write 73.4
DQ Mixed 13.2
21% 37.5 MB/s
122GB free
Firmware: M0CR021 Max speed: SATA 3.0 600 MB/s
Read 459
Write 289
Mixed 324
79% 357 MB/s
4K Read 17.5
4K Write 25.5
4K Mixed 9.43
52% 17.5 MB/s
DQ Read 20.8
DQ Write 33.9
DQ Mixed 9.73
12% 21.4 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 1,917,497 SSDs tested.


AmazonUS $85.591 hr ago.
NeweggUS $89.995 hrs ago.
EbayUS $95.2449 mins ago.
Send price feedback
Typical MX300 275GB Builds (Compare 9,738 builds) See popular component choices, score breakdowns and rankings.
Gaming 104%
Desktop 86%
Aircraft carrier
Workstation 66%
Battle cruiser

Motherboard: Asus Z170 PRO GAMING - $138

EDIT WITH CUSTOM PC BUILDER Value: 102% - Outstanding Total price: $1,041

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.

UserBenchmark of the month

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 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 4 months ago.


4 months ago.

▲Like   ▼Dislike

You have viewed 25 pages, please contribute.

814 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 i7-6700K $330AMD RX 480 $190Samsung 850 Evo 250GB $98
Intel Core i5-6600K $220Nvidia GTX 1070 $377Samsung 850 Pro 256GB $120
Intel Core i7-4790K $338Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $159
Seagate Barracuda 7200.14 1TB $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $110SanDisk Extreme 64GB $28
WD Black 6TB (2015) $270G.SKILL Trident Z DDR4 3200 C14 4x16GB $545SanDisk Extreme 32GB $23
WD Blue 1TB (2012) $50G.SKILL Trident Z DDR4 3200 C16 2x8GB $110SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback