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 3,161 user samples
700 User Benchmarks
Best Bench: 94% 160GB free
Worst Bench: 56% 111GB free
Poor: 56% Great: 94%
SPEED RANK: 227th / 853
2,461 User Benchmarks
Best Bench: 106% 95GB free
Worst Bench: 63% 105GB free
Poor: 63% Great: 106%
SPEED RANK: 115th / 853
Effective Speed
Effective SSD Speed
77.4 % -10% 85.5 % Slightly faster effective speed.
+10%
Read
Avg. Sequential Read Speed
487 MB/s +2% 479 MB/s -2%
Write
Avg. Sequential Write Speed
289 MB/s -43% 414 MB/s Much faster write speed.
+43%
4K Read
Avg. 4K Random Read Speed
23.5 MB/s -21% 28.4 MB/s Faster random read.
+21%
4K Write
Avg. 4K Random Write Speed
74.7 MB/s +2% 73.4 MB/s -2%
Mixed
Avg. Sequential Mixed IO Speed
356 MB/s -17% 415 MB/s Faster mixed IO speed.
+17%
4K Mixed
Avg. 4K Random Mixed IO Speed
25.7 MB/s Slightly faster random mixed IO.
+15%
22.4 MB/s -15%
Read
Peak Sequential Read Speed
521 MB/s +1% 515 MB/s -1%
Write
Peak Sequential Write Speed
301 MB/s -64% 494 MB/s Much faster peak write speed.
+64%
4K Read
Peak 4K Random Read Speed
29.2 MB/s -24% 36.3 MB/s Faster peak random read.
+24%
4K Write
Peak 4K Random Write Speed
112 MB/s -5% 118 MB/s Slightly faster peak random write.
+5%
Mixed
Peak Sequential Mixed IO Speed
380 MB/s -27% 484 MB/s Faster peak mixed IO speed.
+27%
4K Mixed
Peak 4K Random Mixed IO Speed
36 MB/s Faster peak random mixed IO.
+20%
30 MB/s -20%
Market Share
Based on 3,324,546 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.03 % -300% 0.12 % Hugely higher market share.
+300%
Value
Value For Money
75.1 % -2% 76.7 % +2%
User Rating
UBM User Rating
62 % -3% 64 % +3%
Price
Price (score)
$101 +4% $105 -4%
Age
Newest
35 Months Slightly more recent.
+5%
37 Months -5%
DQ Read
Peak 4K-64Thread Read Speed
279 MB/s -30% 363 MB/s Much faster peak deep queue read.
+30%
DQ Write
Peak 4K-64Thread Write Speed
282 MB/s -14% 322 MB/s Slightly faster peak deep queue write.
+14%
AS-SSD Total
AS-SSD Total Score
968 Pts -22% 1,183 Pts Stronger server IO.
+22%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
72.4 MB/s Slightly faster peak deep queue mixed IO.
+11%
65.1 MB/s -11%
ADQ Read
Avg. 4K-64Thread Read Speed
157 MB/s -21% 190 MB/s Faster deep queue read.
+21%
ADQ Write
Avg. 4K-64Thread Write Speed
184 MB/s +3% 178 MB/s -3%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
46.3 MB/s -1% 46.9 MB/s +1%
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) July 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 $337Nvidia GTX 1070 $390Samsung 850 Evo 250GB $96
AMD Ryzen 7 1700 $280AMD RX 480 $379Samsung 850 Pro 256GB $120
Intel Core i5-7600K $235Nvidia GTX 1060-6GB $33Samsung 850 Evo 500GB $162
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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