Controller: Silicon Motion SM2246EN. NAND: Micron 20nm Synchronous MLC.

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

Real World Speed
Performance profile from 8,409 user samples
926 User Benchmarks
Best Bench: 94% 64GB free
Worst Bench: 56% 84GB free
Poor: 56% Great: 94%
SPEED RANK: 223rd / 859
7,483 User Benchmarks
Best Bench: 81% 118GB free
Worst Bench: 51% 179GB free
Poor: 51% Great: 81%
SPEED RANK: 347th / 859
Effective Speed
Effective SSD Speed
78 % Slightly faster effective speed.
68.4 % -14%
Avg. Sequential Read Speed
490 MB/s Slightly faster read speed.
464 MB/s -6%
Avg. Sequential Write Speed
290 MB/s -3% 298 MB/s +3%
4K Read
Avg. 4K Random Read Speed
23.5 MB/s +4% 22.5 MB/s -4%
4K Write
Avg. 4K Random Write Speed
75.6 MB/s Faster random write.
58.5 MB/s -29%
Avg. Sequential Mixed IO Speed
357 MB/s Faster mixed IO speed.
308 MB/s -16%
4K Mixed
Avg. 4K Random Mixed IO Speed
25.8 MB/s Much faster random mixed IO.
17 MB/s -52%
Peak Sequential Read Speed
522 MB/s Slightly faster peak read speed.
484 MB/s -8%
Peak Sequential Write Speed
304 MB/s -11% 338 MB/s Slightly faster peak write speed.
4K Read
Peak 4K Random Read Speed
29.4 MB/s Slightly faster peak random read.
27.5 MB/s -7%
4K Write
Peak 4K Random Write Speed
118 MB/s Much faster peak random write.
81.7 MB/s -44%
Peak Sequential Mixed IO Speed
382 MB/s Slightly faster peak mixed IO speed.
339 MB/s -13%
4K Mixed
Peak 4K Random Mixed IO Speed
36 MB/s Much faster peak random mixed IO.
24.3 MB/s -48%
Market Share
Based on 3,849,016 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % -3,500% 0.72 % Insanely higher market share.
Value For Money
83.3 % Slightly better value.
74.5 % -12%
User Rating
UBM User Rating
62 % -5% 65 % +5%
Price (score)
$89 +4% $93 -4%
37 Months -59% 15 Months Much more recent.
DQ Read
Peak 4K-64Thread Read Speed
281 MB/s Faster peak deep queue read.
230 MB/s -22%
DQ Write
Peak 4K-64Thread Write Speed
282 MB/s Faster peak deep queue write.
221 MB/s -28%
AS-SSD Total
AS-SSD Total Score
978 Pts Stronger server IO.
802 Pts -22%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
71.6 MB/s Much faster peak deep queue mixed IO.
40.4 MB/s -77%
ADQ Read
Avg. 4K-64Thread Read Speed
162 MB/s Faster deep queue read.
128 MB/s -27%
ADQ Write
Avg. 4K-64Thread Write Speed
190 MB/s Much faster deep queue write.
138 MB/s -38%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
46.3 MB/s Much faster deep queue mixed IO.
26.2 MB/s -77%
256GB 275GB

The 256GB Transcend SSD370 sports a Silicon Motion (SM2246EN) controller coupled with Micron 20nm synchronous MLC NAND. With peak sequential read/write speeds of 520/290 MBps and peak 4k read/write speeds of 29/116 the SSD370 has an effective speed which is amongst the bottom 25% of ~250GB drives. The effective speed is weighed down by a relatively weak sequential write speed of just 290 MBps. The performance highlight for the SSD370 is its ability to deal with mixed 4k IO which is arguably one of the best real world indicators. At current prices the SSD370 can't compete as there are both cheaper and faster alternatives on the market but prices are almost certain to drop at which time the SSD370 will fare far better in terms of value. [Oct '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) September 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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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Intel Core i7-7700K $297Nvidia GTX 1070 $410Samsung 850 Evo 250GB $97
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $120
Intel Core i5-7600K $220Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $149
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $141SanDisk Extreme 16GB $20
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