Controller: LSI SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode MLC.

Controller: Marvell SS889175. Memory: SanDisk 19nm eX2 ABL MLC.

Real World Speed
Performance profile from 122,499 user samples
117,018 User Benchmarks
Best Bench: 65% 30GB free
Worst Bench: 29% 90GB free
Poor: 29% Great: 65%
SPEED RANK: 707th / 908
5,481 User Benchmarks
Best Bench: 79% 15GB free
Worst Bench: 48% 22GB free
Poor: 48% Great: 79%
SPEED RANK: 483rd / 908
Effective Speed
Effective SSD Speed
47 % 63.5 % Much faster effective speed.
Avg. Sequential Read Speed
335 MB/s 403 MB/s Faster read speed.
Avg. Sequential Write Speed
109 MB/s 211 MB/s Hugely faster write speed.
4K Read
Avg. 4K Random Read Speed
19.5 MB/s 25.6 MB/s Much faster random read.
4K Write
Avg. 4K Random Write Speed
67.9 MB/s +0% 67.6 MB/s
Avg. Sequential Mixed IO Speed
144 MB/s 249 MB/s Much faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
11.6 MB/s 17.1 MB/s Much faster random mixed IO.
Peak Sequential Read Speed
503 MB/s Slightly faster peak read speed.
445 MB/s
Peak Sequential Write Speed
145 MB/s 279 MB/s Hugely faster peak write speed.
4K Read
Peak 4K Random Read Speed
29.1 MB/s 31.9 MB/s Slightly faster peak random read.
4K Write
Peak 4K Random Write Speed
103 MB/s +2% 101 MB/s
Peak Sequential Mixed IO Speed
199 MB/s 312 MB/s Much faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
18.2 MB/s 23.2 MB/s Faster peak random mixed IO.
Market Share
Based on 6,044,896 SSDs tested.
Market Share
Market Share (trailing 30 days)
2.26 % Insanely higher market share.
0.13 %
Value For Money
45.9 % Much better value.
31.2 %
User Rating
UBM User Rating
57 % 61 % Slightly more popular.
Price (score)
$47 Much cheaper.
64 Months 62 Months +3%
DQ Read
Peak 4K-64Thread Read Speed
162 MB/s 302 MB/s Hugely faster peak deep queue read.
DQ Write
Peak 4K-64Thread Write Speed
144 MB/s 195 MB/s Much faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
620 Pts 899 Pts Much stronger server IO.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
39.4 MB/s 47.1 MB/s Faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
65.5 MB/s 145 MB/s Hugely faster deep queue read.
ADQ Write
Avg. 4K-64Thread Write Speed
103 MB/s 135 MB/s Much faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
21.2 MB/s 32 MB/s Much faster deep queue mixed IO.
120GB 128GB

The 120GB Kingston V300 has a performance profile that closely matches its 240GB sibling. Both drives utilize a Sandforce LSI controller and therefore demonstrate relative weakness in their write speeds. With burst sequential read/write speeds of 497/166 MBps and 4k burst read/write speeds of 30/97 MBps the 120GB V300 is amongst the slower SSDs I have seen. A concern I have with this drive is the relatively slow real world speeds our users have experienced. Most drives have average throughput rates that are around 75% of peak. Both this and the 240GB V300s, based on 130 samples, are averaging sequential read rates of around 240 MBps which is less than 50% of peak. It's not all bad news though because the V300's are priced extremely aggressively and as a result still offer decent value for money. [Feb '14 SSDrivePro]


The 128GB Sandisk Ultra Plus proved to be a bit of a disappointment in comparison to its larger 256GB sibling. The 256GB version has more NAND modules which enable peak sequential write speeds in the region of 450 MB/s. On the 128GB version we saw a peak sequential write speed of just 279 MB/s which is significantly lower than the market leaders which also manage to hit the high 400's. Across the core performance metrics, the 128GB Ultra Plus is around 25% slower than the average of its top competitors and, unlike its 256GB sibling, really struggles to keep up with its direct competition. In terms of value for money the Ultra Plus fares a little better thanks to its reasonably low price tag but there are far better deals to be had in the 128GB category. [Feb '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

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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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