CrucialCT275MX300SSD1
CrucialCT256M4SSD2
$218

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

 $218 

Controller: Marvell 88SS9174-BLD2. Flash Memory: Micron Synchronous 25nm MLC. Release date: Q2 2011.

Real World Speed
Performance profile from 77,478 user samples
61,493 User Benchmarks
Best Bench: 93% 31GB free (System drive)
Worst Bench: 54% 22GB free (System drive)
Poor: 54% Great: 93%
SPEED RANK: 497th / 1058
15,985 User Benchmarks
Best Bench: 73% 100GB free
Worst Bench: 44% 11GB free (System drive)
Poor: 44% Great: 73%
SPEED RANK: 781st / 1058
Effective Speed
Effective SSD Speed
78.4 % Faster effective speed.
+30%
60.4 %
Read
Avg. Sequential Read Speed
430 MB/s 430 MB/s
Write
Avg. Sequential Write Speed
377 MB/s Much faster write speed.
+58%
239 MB/s
4K Read
Avg. 4K Random Read Speed
23.9 MB/s Faster random read.
+19%
20 MB/s
4K Write
Avg. 4K Random Write Speed
83.3 MB/s Faster random write.
+17%
71.1 MB/s
Mixed
Avg. Sequential Mixed IO Speed
337 MB/s Much faster mixed IO speed.
+35%
250 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
33.4 MB/s Hugely faster random mixed IO.
+132%
14.4 MB/s
SusWrite
Avg. Sustained Write Speed
212 MB/s Slightly faster sustained write speed.
+7%
198 MB/s
Read
Peak Sequential Read Speed
471 MB/s 490 MB/s +4%
Write
Peak Sequential Write Speed
477 MB/s Much faster peak write speed.
+79%
266 MB/s
4K Read
Peak 4K Random Read Speed
28.1 MB/s Faster peak random read.
+21%
23.3 MB/s
4K Write
Peak 4K Random Write Speed
113 MB/s Faster peak random write.
+12%
101 MB/s
Mixed
Peak Sequential Mixed IO Speed
400 MB/s Much faster peak mixed IO speed.
+48%
271 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
41.2 MB/s Hugely faster peak random mixed IO.
+119%
18.8 MB/s
SusWrite
Peak Sequential Sustained Write 60s Average
265 MB/s 266 MB/s +0%
Market Share
Based on 45,258,697 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.1 % Hugely higher market share.
+400%
0.02 %
Value
Value For Money
9.21 % Hugely better value.
+108%
4.43 %
User Rating
UBM User Rating
55 % Slightly more popular.
+6%
52 %
Price
Price (score)
$125 Much cheaper.
+43%
$218
Age
Newest
61 Months Much more recent.
+50%
123 Months
DQ Read
Peak 4K-64Thread Read Speed
236 MB/s Faster peak deep queue read.
+28%
184 MB/s
DQ Write
Peak 4K-64Thread Write Speed
326 MB/s Much faster peak deep queue write.
+40%
233 MB/s
AS-SSD Total
AS-SSD Total Score
968 Pts Stronger server IO.
+30%
746 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
307 MB/s Hugely faster peak deep queue mixed IO.
+830%
33 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
214 MB/s Much faster deep queue read.
+61%
133 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
257 MB/s Hugely faster deep queue write.
+89%
136 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
241 MB/s Hugely faster deep queue mixed IO.
+913%
23.8 MB/s
Capacity
Capacity
275GB 256GB
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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]

MORE DETAILS

The Crucial M4 is one of the oldest SSD's to have made it into the group test. When it was released its primary competitors were Sandforce based drives which suffered from two major problems: reliability and weak incompressible data performance. As a result this drive was one of the top drives of its time. That was back in Apr '11. Today the M4 is no longer able to compete and scores below average (377.9 MB/s) on the Real World Speed Index benchmark and way below average (676) on the deep queue depth orientated AS-SSD Total score benchmark. Of course these figures are still far faster than any mechanical hard drive and owners of this drive should feel in no hurry to upgrade. People looking to make a new purchase will find much better value elsewhere. [Apr '13 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) July 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]

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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 userbenchmark.com.
  • - 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.
CPUGPUSSD
Intel Core i5-11400F $239Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11600K $270Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $78
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $85SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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