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

Release date ≈ Q3 2018.

Real World Speed
Performance profile from 28,042 user samples
23,776 User Benchmarks
Best Bench: 95% 147GB free (System drive)
Worst Bench: 55% 111GB free
Poor: 55% Great: 95%
SPEED RANK: 384th / 992
4,266 User Benchmarks
Best Bench: 104% 193GB free (System drive)
Worst Bench: 33% 21GB free (System drive)
Poor: 33% Great: 104%
SPEED RANK: 630th / 992
Effective Speed
Effective SSD Speed
80.6 % Faster effective speed.
64.9 %
Avg. Sequential Read Speed
430 MB/s 465 MB/s Slightly faster read speed.
Avg. Sequential Write Speed
393 MB/s 401 MB/s +2%
4K Read
Avg. 4K Random Read Speed
24.4 MB/s 27 MB/s Slightly faster random read.
4K Write
Avg. 4K Random Write Speed
87.9 MB/s Much faster random write.
52 MB/s
Avg. Sequential Mixed IO Speed
339 MB/s Faster mixed IO speed.
279 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
34.4 MB/s Hugely faster random mixed IO.
16.8 MB/s
Avg. Sustained Write Speed
222 MB/s +0% 221 MB/s
Peak Sequential Read Speed
472 MB/s 512 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
28.5 MB/s 35.7 MB/s Faster peak random read.
4K Write
Peak 4K Random Write Speed
121 MB/s Slightly faster peak random write.
113 MB/s
Peak Sequential Mixed IO Speed
401 MB/s 430 MB/s Slightly faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
41.5 MB/s Faster peak random mixed IO.
32.1 MB/s
Peak Sequential Sustained Write 60s Average
266 MB/s 446 MB/s Much faster peak sustained write speed.
Market Share
Based on 13,029,063 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.28 % 0.43 % Much higher market share.
Value For Money
93.9 % 144 % Much better value.
User Rating
UBM User Rating
67 % More popular.
54 %
Price (score)
$85 $31 Much cheaper.
33 Months 6+ Months Hugely more recent.
DQ Read
Peak 4K-64Thread Read Speed
236 MB/s 240 MB/s +2%
DQ Write
Peak 4K-64Thread Write Speed
326 MB/s 348 MB/s Slightly faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
977 Pts 1,012 Pts +4%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
306 MB/s Hugely faster peak deep queue mixed IO.
49.9 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
212 MB/s +4% 204 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
268 MB/s +2% 262 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
251 MB/s Hugely faster deep queue mixed IO.
37.6 MB/s
275GB 240GB

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 2019 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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Intel Core i7-8700K $370Nvidia GTX 1070 $370Samsung 850 Evo 250GB $45
AMD Ryzen 5 1600 $122Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $97
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $716SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $110SanDisk Ultra Fit 32GB $12
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