Real World Speed
Performance profile from 353,733 user samples
77,623 User Benchmarks
Best Bench: 264% 118GB free
Worst Bench: 168% 162GB free
Poor: 168% Great: 264%
SPEED RANK: 12th / 908
276,110 User Benchmarks
Best Bench: 115% 64GB free
Worst Bench: 71% 106GB free
Poor: 71% Great: 115%
SPEED RANK: 86th / 908
Effective Speed
Effective SSD Speed
219 % Hugely faster effective speed.
94.9 %
Avg. Sequential Read Speed
2193 MB/s Hugely faster read speed.
498 MB/s
Avg. Sequential Write Speed
1116 MB/s Hugely faster write speed.
396 MB/s
4K Read
Avg. 4K Random Read Speed
50.2 MB/s Much faster random read.
38.2 MB/s
4K Write
Avg. 4K Random Write Speed
106 MB/s Much faster random write.
76.8 MB/s
Avg. Sequential Mixed IO Speed
1207 MB/s Hugely faster mixed IO speed.
401 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
33.1 MB/s 33.5 MB/s +1%
Peak Sequential Read Speed
2847 MB/s Hugely faster peak read speed.
517 MB/s
Peak Sequential Write Speed
1257 MB/s Hugely faster peak write speed.
417 MB/s
4K Read
Peak 4K Random Read Speed
59.7 MB/s Faster peak random read.
46.6 MB/s
4K Write
Peak 4K Random Write Speed
152 MB/s Much faster peak random write.
103 MB/s
Peak Sequential Mixed IO Speed
1433 MB/s Hugely faster peak mixed IO speed.
422 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
49.1 MB/s +3% 47.9 MB/s
Market Share
Based on 6,038,103 SSDs tested.
Market Share
Market Share (trailing 30 days)
4.59 % 6.76 % Much higher market share.
Value For Money
183 % Much better value.
103 %
User Rating
UBM User Rating
68 % 124 % Hugely more popular.
Price (score)
$120 $85 Cheaper.
16 Months Much more recent.
39 Months
DQ Read
Peak 4K-64Thread Read Speed
612 MB/s Much faster peak deep queue read.
372 MB/s
DQ Write
Peak 4K-64Thread Write Speed
447 MB/s Much faster peak deep queue write.
280 MB/s
AS-SSD Total
AS-SSD Total Score
2,110 Pts Hugely stronger server IO.
1,148 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
215 MB/s Much faster peak deep queue mixed IO.
122 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
269 MB/s Much faster deep queue read.
186 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
239 MB/s Much faster deep queue write.
176 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
96.4 MB/s Much faster deep queue mixed IO.
66.8 MB/s
250GB 250GB

The 960 Evo SSD is one of Samsung’s premier NVMe SSDs, along with their current flagship, the 960 Pro. The Evo variant is available in a variety of capacities including 250, 500 and 1000 GB, each with a commensurate price tag, whilst the 960 Pro is available in 512, 1024 and 2048 GB capacities. The 960 Evo has lower write endurance compared to the 960 Pro due to its TLC (3-bit) V-NAND flash memory (the 960 Pro consists of MLC (2-bit) V-NAND). As a result, Samsung only guarantee 200 terabytes written on the 512 GB 960 Evo, compared to double that on the 960 Pro, however, this volume of data is very unlikely to affect consumers. The 250 GB 960 Evo has a 13 GB SLC cache which boosts initial write speed to roughly match the 960 Pro but writes exceeding 13 GB drop in speed by over 50%. Overall, the 960 Pro offers more consistent write performance than the 960 Evo, however, this will only impact workloads that exceed the 13 GB. [Nov '17 SSDrivePro]


The 250GB Samsung 850 Evo has a similar architecture to its hugely successful predecessor, the 840 Evo. Both drives are TLC based but the 850 uses 3D V-NAND as opposed to regular NAND. Both drives also feature a Turbowrite cache (TWC) which buffers up to 3GB of writes. The TWC enables high burst write speeds but when the cache exhausts write speeds drop to 300 MB/s. Comparing the 850 and 840 Evos shows that effective speed, has improved by 11% and the warranty has been extended from three to five years but prices are also up by 11%. The 850 Evo does put in superb benchmarks (second only to the 850 Pro) but these are only valid within the TWC. At current price levels the 850 Evo struggles to compete with the value leaders[Dec '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 $195SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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