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

Controller: Indilinx Everest 2 IDX400M00-BC. Flash Memory: Intel Synchronous 25nm MLC.

Real World Speed
Performance profile from 25,838 user samples
24,172 User Benchmarks
Best Bench: 97% 90GB free
Worst Bench: 57% 64GB free
Poor: 57% Great: 97%
SPEED RANK: 175th / 811
1,666 User Benchmarks
Best Bench: 106% 238GB free
Worst Bench: 62% 163GB free
Poor: 62% Great: 106%
SPEED RANK: 89th / 811
Effective Speed
Effective SSD Speed
79.5 % -9% 86.4 % Slightly faster effective speed.
Avg. Sequential Read Speed
482 MB/s Slightly faster read speed.
448 MB/s -8%
Avg. Sequential Write Speed
311 MB/s -27% 396 MB/s Faster write speed.
4K Read
Avg. 4K Random Read Speed
36.7 MB/s Much faster random read.
26.4 MB/s -39%
4K Write
Avg. 4K Random Write Speed
58.8 MB/s -50% 88 MB/s Much faster random write.
Avg. Sequential Mixed IO Speed
323 MB/s -17% 379 MB/s Faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
20.8 MB/s -22% 25.4 MB/s Faster random mixed IO.
Peak Sequential Read Speed
510 MB/s +3% 495 MB/s -3%
Peak Sequential Write Speed
351 MB/s -36% 479 MB/s Much faster peak write speed.
4K Read
Peak 4K Random Read Speed
46.3 MB/s Much faster peak random read.
33.8 MB/s -37%
4K Write
Peak 4K Random Write Speed
86.1 MB/s -53% 132 MB/s Much faster peak random write.
Peak Sequential Mixed IO Speed
356 MB/s -21% 432 MB/s Faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
27.4 MB/s -29% 35.3 MB/s Faster peak random mixed IO.
Market Share
Based on 1,641,194 SSDs tested.
Market Share
Market Share (trailing 30 days)
3.1 % Insanely higher market share.
0.2 % -1,450%
Value For Money
73.1 % Hugely better value.
29.9 % -145%
User Rating
UBM User Rating
56 % -9% 61.3 % Slightly more popular.
Price (score)
$106 Much cheaper.
$400 -74%
41 Months More recent.
56 Months -27%
DQ Read
Peak 4K-64Thread Read Speed
369 MB/s Slightly faster peak deep queue read.
336 MB/s -10%
DQ Write
Peak 4K-64Thread Write Speed
241 MB/s -32% 318 MB/s Much faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
1,077 Pts -6% 1,143 Pts Slightly stronger server IO.
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
84.2 MB/s -46% 123 MB/s Much faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
200 MB/s Slightly faster deep queue read.
184 MB/s -9%
ADQ Write
Avg. 4K-64Thread Write Speed
156 MB/s -31% 205 MB/s Much faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
50.4 MB/s -48% 74.7 MB/s Much faster deep queue mixed IO.
250GB 256GB

The Evo is remarkable in that, like the Sandisk Extreme II, it features a second level cache. For the 250 GB Evo this consists of a 3 GB Turbowrite cache (TWC) which is a block of high speed Flash Memory. When the TWC is exhausted write speeds drop by approximately 50% but that won't often happen under typical consumer workloads. In terms of raw performance, even with its cache, the Evo still isn't the fastest drive. With a real world speed index reading of 439 MB/s the EVO is however, within reach of the two speed leaders (Vector and 850 Pro). At a price point of $130 the Evo is around 30% cheaper making it the best value for money SSDs I have seen in 2014. Comparing the Evo and the Sandisk Ultra Plus shows that the Evo is the winner but the Sandisk may be a viable alternative thanks to its cache-free, and therefore more consistent performance during extended writes. [Aug '14 SSDrivePro]


The Vertex 4 is just over a year old but thanks to its recent firmware update (1.5), it still manages to perform almost on a par with the best drives currently available. One of the striking aspects of the Vertex is its well-rounded performance profile. With an AS-SSD score of 1137 and a real world speed of 548 the Vertex 4 is able to cope extremely well with both server and consumer type workloads. This drive uses the new Indilux Everest 2 controller, which unlike the previous generations of this drive which used a SandForce controller, is able to cope admirably with both compressible and incompressible data. Overall, the Vertex 4 is a great performing SSD that said, there are better value for money (and younger) drives available, including the Vertex 4's own successor, the OCZ Vector[Jun '13 SSDrivePro]


Solid State Drive Rankings (Price vs Performance) December 2016 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]

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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The Best.
Intel Core i7-6700K $329Nvidia GTX 970 $275Samsung 850 Evo 250GB $82
Intel Core i5-6600K $238Nvidia GTX 1070 $380Samsung 850 Pro 256GB $124
Intel Core i7-4790K $328AMD RX 480 $220Samsung 850 Evo 500GB $150
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3000 C15 2x8GB $89SanDisk Extreme 64GB $28
WD Blue 1TB (2012) $47G.SKILL Trident Z DDR4 3200 C16 2x8GB $111SanDisk Extreme 32GB $20
WD Black 1TB (2013) $60HyperX Fury DDR4 2133 C14 2x8GB $97SanDisk Extreme 16GB $16
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