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


Release date ≈ Q4 2014.

Real World Speed
Performance profile from 56,630 user samples
56,617 User Benchmarks
Best Bench: 93% 220GB free
Worst Bench: 53% 55GB free (System drive)
Poor: 53% Great: 93%
SPEED RANK: 481st / 1058
13 User Benchmarks
Best Bench: 74% 12GB free (System drive)
Worst Bench: 50% 8GB free (System drive)
Poor: 50% Great: 74%
SPEED RANK: 768th / 1058
Effective Speed
Effective SSD Speed
79.3 % Faster effective speed.
61.7 %
Avg. Sequential Read Speed
433 MB/s +4% 418 MB/s
Avg. Sequential Write Speed
378 MB/s Hugely faster write speed.
123 MB/s
4K Read
Avg. 4K Random Read Speed
24.3 MB/s 28.7 MB/s Faster random read.
4K Write
Avg. 4K Random Write Speed
83.5 MB/s +5% 79.8 MB/s
Avg. Sequential Mixed IO Speed
337 MB/s Hugely faster mixed IO speed.
169 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
33.7 MB/s Much faster random mixed IO.
21.6 MB/s
Avg. Sustained Write Speed
220 MB/s Hugely faster sustained write speed.
103 MB/s
Peak Sequential Read Speed
471 MB/s 498 MB/s Slightly faster peak read speed.
Peak Sequential Write Speed
477 MB/s Hugely faster peak write speed.
147 MB/s
4K Read
Peak 4K Random Read Speed
28 MB/s 36.7 MB/s Much faster peak random read.
4K Write
Peak 4K Random Write Speed
113 MB/s Slightly faster peak random write.
106 MB/s
Peak Sequential Mixed IO Speed
402 MB/s Much faster peak mixed IO speed.
227 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
41.1 MB/s 45.6 MB/s Faster peak random mixed IO.
Peak Sequential Sustained Write 60s Average
269 MB/s Hugely faster peak sustained write speed.
112 MB/s
Market Share
Based on 46,991,391 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.1 % Insanely higher market share.
0 %
User Rating
UBM User Rating
55 % Slightly more popular.
50 %
63 Months More recent.
82+ Months
DQ Read
Peak 4K-64Thread Read Speed
236 MB/s Hugely faster peak deep queue read.
123 MB/s
DQ Write
Peak 4K-64Thread Write Speed
326 MB/s Hugely faster peak deep queue write.
129 MB/s
AS-SSD Total
AS-SSD Total Score
968 Pts Much stronger server IO.
565 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
306 MB/s Hugely faster peak deep queue mixed IO.
118 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
213 MB/s Hugely faster deep queue read.
84.3 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
259 MB/s Hugely faster deep queue write.
113 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
246 MB/s Hugely faster deep queue mixed IO.
46 MB/s
275GB 60GB

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) September 2021 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.
  • - SkillBench (space shooter) tests user input accuracy.
  • - 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.

 Frequently Asked Questions

 Best User Rated

The Best.
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 850 Evo 120GB $183
Intel Core i7-11700K $350Nvidia GTX 1660S (Super) $240Samsung 860 Evo 250GB $52
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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