Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC. Release date: Q2 2016.


Release date ≈ Q1 2015.

Real World Speed
Performance profile from 39,057 user samples
38,653 User Benchmarks
Best Bench: 94% 43GB free (System drive)
Worst Bench: 51% 74GB free (System drive)
Poor: 51% Great: 94%
SPEED RANK: 475th / 1017
404 User Benchmarks
Best Bench: 106% 153GB free (System drive)
Worst Bench: 63% 343GB free (System drive)
Poor: 63% Great: 106%
SPEED RANK: 347th / 1017
Effective Speed
Effective SSD Speed
77.4 % 85.3 % Slightly faster effective speed.
Avg. Sequential Read Speed
429 MB/s 476 MB/s Slightly faster read speed.
Avg. Sequential Write Speed
374 MB/s 389 MB/s +4%
4K Read
Avg. 4K Random Read Speed
23.8 MB/s 25.7 MB/s Slightly faster random read.
4K Write
Avg. 4K Random Write Speed
82.2 MB/s Faster random write.
68.2 MB/s
Avg. Sequential Mixed IO Speed
330 MB/s 366 MB/s Slightly faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
33.1 MB/s Faster random mixed IO.
27.2 MB/s
Avg. Sustained Write Speed
208 MB/s 400 MB/s Hugely faster sustained write speed.
Peak Sequential Read Speed
473 MB/s 524 MB/s Slightly faster peak read speed.
Peak Sequential Write Speed
477 MB/s Slightly faster peak write speed.
454 MB/s
4K Read
Peak 4K Random Read Speed
28.3 MB/s 32.7 MB/s Faster peak random read.
4K Write
Peak 4K Random Write Speed
117 MB/s Slightly faster peak random write.
106 MB/s
Peak Sequential Mixed IO Speed
400 MB/s 411 MB/s +3%
4K Mixed
Peak 4K Random Mixed IO Speed
41.5 MB/s 44.1 MB/s Slightly faster peak random mixed IO.
Peak Sequential Sustained Write 60s Average
265 MB/s 456 MB/s Much faster peak sustained write speed.
Market Share
Based on 23,742,783 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.24 % Insanely higher market share.
0 %
Value For Money
8.17 % 13.8 % Much better value.
User Rating
UBM User Rating
67 % Much more popular.
50 %
Price (score)
$144 +3% $148
45 Months More recent.
61+ Months
DQ Read
Peak 4K-64Thread Read Speed
236 MB/s 378 MB/s Much faster peak deep queue read.
DQ Write
Peak 4K-64Thread Write Speed
326 MB/s 341 MB/s +5%
AS-SSD Total
AS-SSD Total Score
972 Pts 1,200 Pts Stronger server IO.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
306 MB/s Faster peak deep queue mixed IO.
252 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
210 MB/s 216 MB/s +3%
ADQ Write
Avg. 4K-64Thread Write Speed
248 MB/s Faster deep queue write.
208 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
238 MB/s Hugely faster deep queue mixed IO.
99.3 MB/s
275GB 500GB

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]


Solid State Drive Rankings (Price vs Performance) March 2020 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.
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.
  • - 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.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
Intel Core i5-9400F $150Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $49
Intel Core i5-9600K $210Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $505Samsung 850 Pro 512GB $249
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Ultra Fit 32GB $16
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