Real World Speed
Performance profile from 100,718 user samples
343 User Benchmarks
Best Bench: 275% 112GB free
Worst Bench: 196% 174GB free
Poor: 196% Great: 275%
SPEED RANK: 14th / 927
100,375 User Benchmarks
Best Bench: 261% 249GB free
Worst Bench: 170% 45GB free
Poor: 170% Great: 261%
SPEED RANK: 19th / 927
Effective Speed
Effective SSD Speed
243 % Slightly faster effective speed.
217 %
Avg. Sequential Read Speed
2485 MB/s Slightly faster read speed.
2187 MB/s
Avg. Sequential Write Speed
1196 MB/s Slightly faster write speed.
1125 MB/s
4K Read
Avg. 4K Random Read Speed
54.2 MB/s Slightly faster random read.
49.3 MB/s
4K Write
Avg. 4K Random Write Speed
107 MB/s +5% 102 MB/s
Avg. Sequential Mixed IO Speed
1452 MB/s Faster mixed IO speed.
1206 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
45.6 MB/s Much faster random mixed IO.
32.6 MB/s
Peak Sequential Read Speed
2906 MB/s +2% 2846 MB/s
Peak Sequential Write Speed
1236 MB/s 1250 MB/s +1%
4K Read
Peak 4K Random Read Speed
62.7 MB/s Slightly faster peak random read.
59.3 MB/s
4K Write
Peak 4K Random Write Speed
138 MB/s 143 MB/s +4%
Peak Sequential Mixed IO Speed
1577 MB/s Slightly faster peak mixed IO speed.
1423 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
64.1 MB/s Much faster peak random mixed IO.
47.9 MB/s
Market Share
Based on 6,819,168 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.52 % 4.35 % Hugely higher market share.
Value For Money
217 % Better value.
188 %
User Rating
UBM User Rating
52 % 70 % Much more popular.
Price (score)
$110 +4% $115
0 Months Hugely more recent.
18 Months
DQ Read
Peak 4K-64Thread Read Speed
572 MB/s 573 MB/s +0%
DQ Write
Peak 4K-64Thread Write Speed
407 MB/s 426 MB/s +5%
AS-SSD Total
AS-SSD Total Score
2,004 Pts 2,019 Pts +1%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
216 MB/s +5% 206 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
247 MB/s 256 MB/s +4%
ADQ Write
Avg. 4K-64Thread Write Speed
233 MB/s +1% 230 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
92.6 MB/s +1% 91.7 MB/s
250GB 250GB

The 970 Evo is Samsung’s third generation NVMe PCIe SSD for high-end consumers and professionals alike. It employs the latest Samsung Phoenix controller and their latest version of TLC 3D NAND (now 64-layers) which is cheaper but with slightly lower endurance and weaker write consistency than the MLC NAND found in the 970 Pro. The 970 Evo comes in a M.2 form factor and four sizes: 250GB, 500GB, 1TB and 2TB. The $120 250GB 970 Evo has an advertised sequential read speed of up to 3400 MB/s (200MB/s faster than the 250GB 960 Evo) and a sequential write speed of 1500 MB/s which drops to 300 MB/s once the 13Gb of SLC cache has been exhausted (this is similar to the sustained write performance on the 960 Evo). Further benchmarks are required before we can attest to its overall performance in the real world. The anticipated modest performance improvement between generations is expected to maintain Samsung’s front running as the premium SSD brand. Samsung now offers a warranty of 5 years across the suite of 970 SSDs and specifically a generous write endurance of 150 TBW on the 250 GB 970 Evo, thereby challenging the need for the 970 Pro MLC variant. [May '18 SSDrivePro]


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]


Solid State Drive Rankings (Price vs Performance) May 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 $320Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
AMD Ryzen 5 1600 $172Nvidia GTX 1060-6GB $292Samsung 850 Evo 500GB $136
Intel Core i7-7700K $285AMD RX 480 $300Samsung 850 Pro 256GB $163
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $961SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback