TranscendTS256GSSD370
SanDiskSDSSDXPS-240G

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

Controller: Marvell 88SS9187-BLD2. Flash Memory: SanDisk 19nm eX2 ABL MLC.

Real World Speed
Performance profile from 4,858 user samples
1,268 User Benchmarks
Best Bench: 94% 64GB free
Worst Bench: 58% 84GB free
Poor: 58% Great: 94%
SPEED RANK: 213th / 862
3,590 User Benchmarks
Best Bench: 105% 101GB free
Worst Bench: 66% 160GB free
Poor: 66% Great: 105%
SPEED RANK: 108th / 862
Effective Speed
Effective SSD Speed
79.1 % -10% 87.2 % Slightly faster effective speed.
+10%
Read
Avg. Sequential Read Speed
493 MB/s -0% 494 MB/s +0%
Write
Avg. Sequential Write Speed
291 MB/s -46% 424 MB/s Much faster write speed.
+46%
4K Read
Avg. 4K Random Read Speed
23.4 MB/s -26% 29.6 MB/s Faster random read.
+26%
4K Write
Avg. 4K Random Write Speed
76 MB/s -5% 79.5 MB/s +5%
Mixed
Avg. Sequential Mixed IO Speed
360 MB/s -18% 423 MB/s Faster mixed IO speed.
+18%
4K Mixed
Avg. 4K Random Mixed IO Speed
26.6 MB/s Faster random mixed IO.
+26%
21.1 MB/s -26%
Read
Peak Sequential Read Speed
524 MB/s +2% 516 MB/s -2%
Write
Peak Sequential Write Speed
304 MB/s -62% 493 MB/s Much faster peak write speed.
+62%
4K Read
Peak 4K Random Read Speed
29.2 MB/s -23% 35.9 MB/s Faster peak random read.
+23%
4K Write
Peak 4K Random Write Speed
113 MB/s -3% 116 MB/s +3%
Mixed
Peak Sequential Mixed IO Speed
383 MB/s -27% 485 MB/s Faster peak mixed IO speed.
+27%
4K Mixed
Peak 4K Random Mixed IO Speed
35.8 MB/s Faster peak random mixed IO.
+23%
29.1 MB/s -23%
Market Share
Based on 4,441,629 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.05 % -240% 0.17 % Hugely higher market share.
+240%
Value
Value For Money
55.5 % -41% 78.3 % Much better value.
+41%
User Rating
UBM User Rating
62 % -3% 64 % +3%
Price
Price (score)
$156 -33% $105 Much cheaper.
+33%
Age
Newest
39 Months +5% 41 Months -5%
DQ Read
Peak 4K-64Thread Read Speed
282 MB/s -28% 361 MB/s Faster peak deep queue read.
+28%
DQ Write
Peak 4K-64Thread Write Speed
283 MB/s -14% 324 MB/s Slightly faster peak deep queue write.
+14%
AS-SSD Total
AS-SSD Total Score
975 Pts -21% 1,179 Pts Stronger server IO.
+21%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
72.7 MB/s Slightly faster peak deep queue mixed IO.
+11%
65.3 MB/s -11%
ADQ Read
Avg. 4K-64Thread Read Speed
174 MB/s +1% 173 MB/s -1%
ADQ Write
Avg. 4K-64Thread Write Speed
199 MB/s Slightly faster deep queue write.
+6%
188 MB/s -6%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
47.8 MB/s Faster deep queue mixed IO.
+22%
39.2 MB/s -22%
Capacity
Capacity
256GB 240GB
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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]

MORE DETAILS

The 240GB Sandisk Extreme Pro uses the same controller and NAND as its 13 months younger predecessor, the Extreme II. Comparing the Extreme II and Extreme Pro shows that average performance has increased by 10% but peak performance remains broadly unchanged. The Pro features an improved nCache which uses an SLC buffer to cache writes prior to writing them to the slower MLC NAND. In order to benefit from this improved caching, huge amounts of data need to be written for extended periods, an unlikely consumer scenario. Comparing core performance between the Samsung 840 Evo and Extreme Pro shows that the Extreme Pro averages around 12% faster than the Evo. The Extreme Pro also has a 10 year warranty but I wonder if SATA 3 will even be around at that time. Although the Extreme Pro has a superb performance profile it's not a game changer. [Jun '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) November 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 userbenchmark.com.
  • - 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $288Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $270AMD RX 480 $240Samsung 850 Pro 256GB $110
Intel Core i5-7600K $200Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $148
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $189SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $12
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