Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC.

Controller: Marvell 88SS1074. Flash Memory: Micron 3D TLC.

Real World Speed
Performance profile from 88,142 user samples
72,000 User Benchmarks
Best Bench: 94% 48GB free
Worst Bench: 59% 57GB free
Poor: 59% Great: 94%
SPEED RANK: 237th / 911
16,142 User Benchmarks
Best Bench: 82% 188GB free
Worst Bench: 49% 168GB free
Poor: 49% Great: 82%
SPEED RANK: 392nd / 911
Effective Speed
Effective SSD Speed
79 % Faster effective speed.
68.4 %
Avg. Sequential Read Speed
485 MB/s +5% 462 MB/s
Avg. Sequential Write Speed
318 MB/s Slightly faster write speed.
297 MB/s
4K Read
Avg. 4K Random Read Speed
35.9 MB/s Much faster random read.
22.7 MB/s
4K Write
Avg. 4K Random Write Speed
57.6 MB/s 57.7 MB/s +0%
Avg. Sequential Mixed IO Speed
326 MB/s Slightly faster mixed IO speed.
307 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
20.4 MB/s Faster random mixed IO.
17.4 MB/s
Peak Sequential Read Speed
510 MB/s Slightly faster peak read speed.
484 MB/s
Peak Sequential Write Speed
351 MB/s +4% 339 MB/s
4K Read
Peak 4K Random Read Speed
44.9 MB/s Much faster peak random read.
27.4 MB/s
4K Write
Peak 4K Random Write Speed
81.7 MB/s +3% 79.7 MB/s
Peak Sequential Mixed IO Speed
357 MB/s Slightly faster peak mixed IO speed.
339 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
26.8 MB/s Slightly faster peak random mixed IO.
24.3 MB/s
Market Share
Based on 6,063,115 SSDs tested.
Market Share
Market Share (trailing 30 days)
1.25 % Hugely higher market share.
0.61 %
Value For Money
51.7 % 83.5 % Much better value.
User Rating
UBM User Rating
58 % 67 % More popular.
Price (score)
$167 $80 Much cheaper.
56 Months 21 Months Much more recent.
DQ Read
Peak 4K-64Thread Read Speed
359 MB/s Much faster peak deep queue read.
230 MB/s
DQ Write
Peak 4K-64Thread Write Speed
239 MB/s Slightly faster peak deep queue write.
221 MB/s
AS-SSD Total
AS-SSD Total Score
1,053 Pts Much stronger server IO.
800 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
83.6 MB/s Hugely faster peak deep queue mixed IO.
40.4 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
192 MB/s Much faster deep queue read.
135 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
151 MB/s Slightly faster deep queue write.
133 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
49.5 MB/s Hugely faster deep queue mixed IO.
26.2 MB/s
250GB 275GB

The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]


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 2018 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 - Sometimes benchmarks get it completely wrong...
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.
  • Details ordered by value - Detailed performance stats ordered by overall value for money.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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The Best.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $150
AMD Ryzen 5 1600 $188AMD RX 480 $400Samsung 850 Pro 256GB $146
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $190SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $216SanDisk Extreme 16GB $18
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