CorsairCSSD-N240GBXT
$170
SamsungMZ-7KE256BW
 $170 

Controller: Phison PS3110-S10. NAND Flash: Toshiba 19nm MLC.

Controller: Samsung Triple Core MEX. Memory: Samsung 40nm MLC V-NAND

Real World Speed
Performance profile from 32,788 user samples
639 User Benchmarks
Best Bench: 103% 89GB free
Worst Bench: 55% 198GB free
Poor: 55% Great: 103%
SPEED RANK: 175th / 873
32,149 User Benchmarks
Best Bench: 123% 158GB free
Worst Bench: 68% 96GB free
Poor: 68% Great: 123%
SPEED RANK: 60th / 873
Effective Speed
Effective SSD Speed
81.9 % -22% 99.7 % Faster effective speed.
+22%
Read
Avg. Sequential Read Speed
494 MB/s -2% 506 MB/s +2%
Write
Avg. Sequential Write Speed
421 MB/s -5% 444 MB/s Slightly faster write speed.
+5%
4K Read
Avg. 4K Random Read Speed
28.4 MB/s -15% 32.8 MB/s Faster random read.
+15%
4K Write
Avg. 4K Random Write Speed
72.3 MB/s -22% 88.4 MB/s Faster random write.
+22%
Mixed
Avg. Sequential Mixed IO Speed
446 MB/s -4% 462 MB/s +4%
4K Mixed
Avg. 4K Random Mixed IO Speed
13.5 MB/s -157% 34.7 MB/s Hugely faster random mixed IO.
+157%
Read
Peak Sequential Read Speed
527 MB/s -0% 529 MB/s +0%
Write
Peak Sequential Write Speed
509 MB/s +1% 502 MB/s -1%
4K Read
Peak 4K Random Read Speed
36.9 MB/s -15% 42.6 MB/s Faster peak random read.
+15%
4K Write
Peak 4K Random Write Speed
115 MB/s -8% 124 MB/s Slightly faster peak random write.
+8%
Mixed
Peak Sequential Mixed IO Speed
514 MB/s +0% 513 MB/s -0%
4K Mixed
Peak 4K Random Mixed IO Speed
16 MB/s -221% 51.3 MB/s Hugely faster peak random mixed IO.
+221%
Market Share
Based on 5,201,195 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.02 % -4,800% 0.98 % Insanely higher market share.
+4,800%
Value
Value For Money
51.2 % -77% 90.8 % Much better value.
+77%
User Rating
UBM User Rating
62 % -60% 99 % Much more popular.
+60%
Price
Price (score)
$170 -35% $110 Much cheaper.
+35%
Age
Newest
37 Months Slightly more recent.
+12%
42 Months -12%
DQ Read
Peak 4K-64Thread Read Speed
360 MB/s -6% 380 MB/s Slightly faster peak deep queue read.
+6%
DQ Write
Peak 4K-64Thread Write Speed
344 MB/s +2% 338 MB/s -2%
AS-SSD Total
AS-SSD Total Score
1,202 Pts -4% 1,245 Pts +4%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
63.4 MB/s -156% 162 MB/s Hugely faster peak deep queue mixed IO.
+156%
ADQ Read
Avg. 4K-64Thread Read Speed
162 MB/s -26% 204 MB/s Faster deep queue read.
+26%
ADQ Write
Avg. 4K-64Thread Write Speed
203 MB/s -10% 224 MB/s Slightly faster deep queue write.
+10%
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
21.8 MB/s -312% 89.8 MB/s Hugely faster deep queue mixed IO.
+312%
Capacity
Capacity
240GB 256GB
ADVERTISEMENT

The 256GB Samsung 850 Pro is the fastest consumer SSD we have seen to date. Thanks to Samsung's new 3D V-NAND the 850 Pro has lower power consumption and better performance, albeit marginally, than both the 840 Evo and 840 Pro. Looking at the benchmark figures for the 840 and 850 Pros shows that the effective performance improvement is 10% whereas the 850 Pro beats the 840 Evo by 16%. These drives effectively saturate SATA 3.0 making it difficult to distinguish between them in day-to-day use. At current prices the 850 Pro is prohibitively expensive, prices need to drop by 15% before it approaches the 840 Pro from a value perspective. Samsung may release a value orientated 850 Evo soon, but for now "most" users are better off with the 840 Pro. [Oct '14 SSDrivePro]

MORE DETAILS

Solid State Drive Rankings (Price vs Performance) January 2018 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 $280Nvidia GTX 1070 $430Samsung 850 Evo 250GB $87
AMD Ryzen 7 1700 $270Nvidia GTX 1060-6GB $275Samsung 850 Evo 500GB $140
Intel Core i5-7600K $210AMD RX 480 $400Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $205SanDisk Extreme 64GB $65
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $220SanDisk Ultra Fit 32GB $12
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