Controller: Samsung 3 Core MEX. Memory: Samsung 19nm Toggle Mode TLC.

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

Real World Speed
Performance profile from 181,208 user samples
47,691 User Benchmarks
Best Bench: 93% 45GB free
Worst Bench: 61% 13GB free
Poor: 61% Great: 93%
SPEED RANK: 268th / 929
133,517 User Benchmarks
Best Bench: 64% 45GB free
Worst Bench: 30% 16GB free
Poor: 30% Great: 64%
SPEED RANK: 740th / 929
Effective Speed
Effective SSD Speed
78.9 % Much faster effective speed.
47.3 %
Avg. Sequential Read Speed
477 MB/s Much faster read speed.
340 MB/s
Avg. Sequential Write Speed
317 MB/s Hugely faster write speed.
109 MB/s
4K Read
Avg. 4K Random Read Speed
36.6 MB/s Hugely faster random read.
19.4 MB/s
4K Write
Avg. 4K Random Write Speed
59.3 MB/s 68.8 MB/s Faster random write.
Avg. Sequential Mixed IO Speed
313 MB/s Hugely faster mixed IO speed.
144 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
19.6 MB/s Much faster random mixed IO.
11.7 MB/s
Peak Sequential Read Speed
503 MB/s +0% 501 MB/s
Peak Sequential Write Speed
351 MB/s Hugely faster peak write speed.
144 MB/s
4K Read
Peak 4K Random Read Speed
44.5 MB/s Much faster peak random read.
29.9 MB/s
4K Write
Peak 4K Random Write Speed
79.3 MB/s 103 MB/s Faster peak random write.
Peak Sequential Mixed IO Speed
345 MB/s Much faster peak mixed IO speed.
198 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
24.5 MB/s Much faster peak random mixed IO.
18 MB/s
Market Share
Based on 7,160,125 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.86 % 2.22 % Hugely higher market share.
Value For Money
34.3 % 41 % Better value.
User Rating
UBM User Rating
63 % Slightly more popular.
57 %
Price (score)
$138 $55 Much cheaper.
59 Months Slightly more recent.
67 Months
DQ Read
Peak 4K-64Thread Read Speed
359 MB/s Hugely faster peak deep queue read.
162 MB/s
DQ Write
Peak 4K-64Thread Write Speed
239 MB/s Much faster peak deep queue write.
144 MB/s
AS-SSD Total
AS-SSD Total Score
1,049 Pts Much stronger server IO.
622 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
68.1 MB/s Much faster peak deep queue mixed IO.
39.3 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
189 MB/s Hugely faster deep queue read.
65 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
157 MB/s Much faster deep queue write.
102 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
41.2 MB/s Hugely faster deep queue mixed IO.
21.5 MB/s
120GB 120GB

The 120GB Evo, like its 250GB sibling, features a second level Turbowrite cache (TWC). This 3GB block of high speed SLC memory allows the Evo to write data at 370 MB/s, nearly double its normal rate. When the TWC is full write speeds drop by around 50% but since consumers generally write less than 3GB in a typical write operation, the performance drop will rarely be noticed. On the other hand, in a server environment this sort of performance degradation would be unacceptable. Comparing the 120GB and 250GB Evos shows that they have similar performance profiles. The performance equivalence between the different capacities, coupled with the fact that their prices are almost linear, implies that both capacities represent roughly the same value for money. Within its TWC, the 120GB Evo is capable of chart topping burst IO rates and it sits squarely amongst the best performing 120GB drives. [Aug '14 SSDrivePro]


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]


Solid State Drive Rankings (Price vs Performance) June 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.
AMD Ryzen 5 1600 $175Nvidia GTX 1070 $447Samsung 850 Evo 250GB $104
Intel Core i7-8700K $320Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $123
Intel Core i5-8600K $239AMD RX 480 $280Samsung 850 Pro 256GB $116
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback