Real World Speed
Performance profile from 79,400 user samples
42,267 User Benchmarks
Best Bench: 282% 27GB free
Worst Bench: 178% 280GB free
Poor: 178% Great: 282%
SPEED RANK: 10th / 908
37,133 User Benchmarks
Best Bench: 121% 182GB free
Worst Bench: 71% 141GB free
Poor: 71% Great: 121%
SPEED RANK: 80th / 908
Effective Speed
Effective SSD Speed
232 % Hugely faster effective speed.
98.3 %
Avg. Sequential Read Speed
2207 MB/s Hugely faster read speed.
502 MB/s
Avg. Sequential Write Speed
1314 MB/s Hugely faster write speed.
441 MB/s
4K Read
Avg. 4K Random Read Speed
48.8 MB/s Much faster random read.
32.6 MB/s
4K Write
Avg. 4K Random Write Speed
105 MB/s Faster random write.
85.9 MB/s
Avg. Sequential Mixed IO Speed
1294 MB/s Hugely faster mixed IO speed.
460 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
36.1 MB/s +5% 34.4 MB/s
Peak Sequential Read Speed
2879 MB/s Hugely faster peak read speed.
528 MB/s
Peak Sequential Write Speed
1451 MB/s Hugely faster peak write speed.
502 MB/s
4K Read
Peak 4K Random Read Speed
59.1 MB/s Much faster peak random read.
42.1 MB/s
4K Write
Peak 4K Random Write Speed
152 MB/s Faster peak random write.
121 MB/s
Peak Sequential Mixed IO Speed
1513 MB/s Hugely faster peak mixed IO speed.
513 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
52 MB/s +2% 50.8 MB/s
Market Share
Based on 6,044,896 SSDs tested.
Market Share
Market Share (trailing 30 days)
2.13 % Hugely higher market share.
0.79 %
Value For Money
204 % Hugely better value.
83.8 %
User Rating
UBM User Rating
58 % 99 % Much more popular.
Price (score)
$225 $120 Much cheaper.
15 Months Much more recent.
44 Months
DQ Read
Peak 4K-64Thread Read Speed
626 MB/s Much faster peak deep queue read.
375 MB/s
DQ Write
Peak 4K-64Thread Write Speed
457 MB/s Much faster peak deep queue write.
336 MB/s
AS-SSD Total
AS-SSD Total Score
2,172 Pts Much stronger server IO.
1,232 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
229 MB/s Much faster peak deep queue mixed IO.
163 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
277 MB/s Much faster deep queue read.
196 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
246 MB/s Faster deep queue write.
211 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
98.1 MB/s Slightly faster deep queue mixed IO.
88 MB/s
500GB 256GB

Super low latencies and great TurboWrite performance for not much more than mid-to-high-end SATA drives--when bought lightly used, which is the best way to go in this NAND market IMO. [Jul '17 silhex88]


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]


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

 Best User Rated

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
Intel Core i5-8600K $243AMD RX 480 $400Samsung 850 Pro 256GB $120
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 $212SanDisk Extreme 16GB $18
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