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

Release date ≈ Q3 2016.

Real World Speed
Performance profile from 36,270 user samples
27,842 User Benchmarks
Best Bench: 96% 95GB free
Worst Bench: 61% 62GB free (System drive)
Poor: 61% Great: 96%
SPEED RANK: 389th / 1000
8,428 User Benchmarks
Best Bench: 94% 105GB free (System drive)
Worst Bench: 58% 22GB free (System drive)
Poor: 58% Great: 94%
SPEED RANK: 395th / 1000
Effective Speed
Effective SSD Speed
80.8 % +1% 80.3 %
Avg. Sequential Read Speed
436 MB/s +1% 433 MB/s
Avg. Sequential Write Speed
388 MB/s +2% 382 MB/s
4K Read
Avg. 4K Random Read Speed
24.2 MB/s +1% 23.9 MB/s
4K Write
Avg. 4K Random Write Speed
89 MB/s +3% 86.6 MB/s
Avg. Sequential Mixed IO Speed
339 MB/s +0% 338 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
34.2 MB/s +0% 34.1 MB/s
Avg. Sustained Write Speed
219 MB/s 224 MB/s +2%
Peak Sequential Read Speed
473 MB/s +0% 471 MB/s
Peak Sequential Write Speed
479 MB/s +1% 473 MB/s
4K Read
Peak 4K Random Read Speed
28.6 MB/s +1% 28.4 MB/s
4K Write
Peak 4K Random Write Speed
123 MB/s +3% 119 MB/s
Peak Sequential Mixed IO Speed
401 MB/s +1% 399 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
42.3 MB/s +2% 41.4 MB/s
Peak Sequential Sustained Write 60s Average
268 MB/s 288 MB/s Slightly faster peak sustained write speed.
Market Share
Based on 14,384,409 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.26 % Hugely higher market share.
0.08 %
Value For Money
94.2 % Slightly better value.
89.7 %
User Rating
UBM User Rating
67 % More popular.
52 %
Price (score)
$85 Slightly cheaper.
35 Months 33+ Months Slightly more recent.
DQ Read
Peak 4K-64Thread Read Speed
236 MB/s 236 MB/s
DQ Write
Peak 4K-64Thread Write Speed
326 MB/s +0% 325 MB/s
AS-SSD Total
AS-SSD Total Score
979 Pts +1% 973 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
306 MB/s 306 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
216 MB/s 218 MB/s +1%
ADQ Write
Avg. 4K-64Thread Write Speed
270 MB/s +2% 265 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
248 MB/s 261 MB/s Slightly faster deep queue mixed IO.
275GB 275GB

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) May 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

 Best User Rated

The Best.
Intel Core i7-8700K $356Nvidia GTX 1070 $314Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $145Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $108Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $90SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $95SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback