Average Bench: 79.4% (492nd of 1072)

Based on 67,541 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]

Good average bench

The Crucial MX300 275GB averaged 20.6% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Crucial MX300 275GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 245MB/s
Avg. 4K Random Write Speed 84.7MB/s

Average consistency

The range of scores (95th - 5th percentile) for the Crucial MX300 275GB is 41.1%. This is a relatively wide range which indicates that the Crucial MX300 275GB performs inconsistently under varying real world conditions.


Avg. Sustained Write Speed 217MB/s
Avg. Sequential Mixed IO Speed 339MB/s

Average Bench

(Based on 67,541 samples)
Min Avg Max
347 Read 433 472
150 Write 380 478
159 Mixed 339 402
122 SusWrite 217 273
76.8% 342 MB/s
Min Avg Max
15.7 4K Read 24.2 28.2
34.7 4K Write 84.7 117
18.4 4K Mixed 33.9 41.4
125% 47.6 MB/s
Min Avg Max
123 DQ Read 216 236
83 DQ Write 257 326
59.7 DQ Mixed 245 306
182% 239 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
117GB free
Firmware: M0CR021
SusWrite @10s intervals: 450 393 288 137 138 137 MB/s
Read 466
Write 475
Mixed 386
SusWrite 257
89% 396 MB/s
4K Read 26.1
4K Write 83.7
4K Mixed 36.8
131% 48.9 MB/s
DQ Read 234
DQ Write 320
DQ Mixed 272
207% 276 MB/s
124GB free (System drive)
Firmware: M0CR060
SusWrite @10s intervals: 329 374 322 150 150 154 MB/s
Read 450
Write 464
Mixed 392
SusWrite 246
87% 388 MB/s
4K Read 25.6
4K Write 90.5
4K Mixed 36.8
134% 51 MB/s
DQ Read 233
DQ Write 325
DQ Mixed 302
222% 287 MB/s
75GB free (System drive)
Firmware: M0CR060
SusWrite @10s intervals: 304 335 309 156 143 148 MB/s
Read 434
Write 420
Mixed 369
SusWrite 233
82% 364 MB/s
4K Read 24.3
4K Write 69
4K Mixed 34.4
117% 42.6 MB/s
DQ Read 235
DQ Write 318
DQ Mixed 295
218% 282 MB/s
85GB free (System drive)
Firmware: M0CR040
SusWrite @10s intervals: 307 198 137 141 136 138 MB/s
Read 441
Write 316
Mixed 329
SusWrite 176
70% 316 MB/s
4K Read 23
4K Write 57.9
4K Mixed 10.6
79% 30.5 MB/s
DQ Read 169
DQ Write 7.6
DQ Mixed 33.3
38% 69.9 MB/s
34GB free
Firmware: M0CR040
SusWrite @10s intervals: 142 147 134 130 134 115 MB/s
Read 361
Write 303
Mixed 153
SusWrite 134
53% 238 MB/s
4K Read 15.2
4K Write 56.6
4K Mixed 17
75% 29.6 MB/s
DQ Read 140
DQ Write 150
DQ Mixed 108
92% 133 MB/s
67,541 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 75,133,447 SSDs tested


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MSRP ≈ $70 @ launch in Jun '16
AmazonUS $16012 mins
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Typical MX300 275GB Builds (Compare 13,657 builds) See popular component choices, score breakdowns and rankings
Gaming 68%
Battle cruiser
Desktop 86%
Aircraft carrier
Workstation 58%

Motherboard: Asus Z170 PRO GAMING - $295

EDIT WITH CUSTOM PC BUILDER Value: 83% - Excellent Total price: $832

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 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 value for money upgrades.

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How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
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Solid State Drive Rankings (Price vs Performance) February 2024 SSD Rankings

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


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

Instant performance that lasts...

Added 7 years ago.


7 years ago.

1072 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 i5-13600K $285Nvidia RTX 4060 $285Crucial MX500 250GB $31
Intel Core i5-12400F $146Nvidia RTX 4060-Ti $360Samsung 850 Evo 120GB $80
Intel Core i5-12600K $170Nvidia RTX 4070 $530Samsung 860 Evo 250GB $49
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $45SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $45SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $64G.SKILL Trident Z DDR4 3200 C14 4x16GB $346SanDisk Ultra Fit 32GB $16
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