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 14,568 user samples
13,402 User Benchmarks
Best Bench: 103% 99GB free
Worst Bench: 23% 9GB free
Worst: 23% Best: 103%
SPEED RANK: 143rd / 766
1,166 User Benchmarks
Best Bench: 117% 202GB free
Worst Bench: 41% 44GB free
Worst: 41% Best: 117%
SPEED RANK: 85th / 766
Effective Speed
Effective SSD Speed
80.8 % -5% 84.8 % +5%
Market Share
Based on 834,528 SSDs tested.
Market Share
Market Share (trailing 30 days)
5.2 % Insanely higher market share.
0.2 % -2,500%
Value For Money
65.7 % Hugely better value.
29.3 % -124%
User Rating
UBM User Rating
56 % -7% 60 % Slightly more popular.
Price (score)
$125 Much cheaper.
$400 -69%
Avg. Sequential Read Speed
481 MB/s Slightly faster read speed.
448 MB/s -7%
Avg. Sequential Write Speed
341 MB/s -16% 394 MB/s Faster write speed.
4K Read
Avg. 4K Random Read Speed
36 MB/s Much faster random read.
25.7 MB/s -40%
4K Write
Avg. 4K Random Write Speed
60.4 MB/s -38% 83.6 MB/s Much faster random write.
Avg. Sequential Mixed IO Speed
325 MB/s -16% 378 MB/s Faster mixed IO speed.
4K Mixed
Avg. 4K Random Mixed IO Speed
20.5 MB/s -21% 24.8 MB/s Faster random mixed IO.
Peak Sequential Read Speed
510 MB/s +2% 498 MB/s -2%
Peak Sequential Write Speed
376 MB/s -27% 476 MB/s Faster peak write speed.
4K Read
Peak 4K Random Read Speed
45.1 MB/s Much faster peak random read.
33.1 MB/s -36%
4K Write
Peak 4K Random Write Speed
88.7 MB/s -42% 126 MB/s Much faster peak random write.
Peak Sequential Mixed IO Speed
357 MB/s -22% 434 MB/s Faster peak mixed IO speed.
4K Mixed
Peak 4K Random Mixed IO Speed
27.2 MB/s -33% 36.2 MB/s Much faster peak random mixed IO.
34 Months Much more recent.
49 Months -31%
DQ Read
Peak 4K-64Thread Read Speed
362 MB/s Slightly faster peak deep queue read.
335 MB/s -8%
DQ Write
Peak 4K-64Thread Write Speed
255 MB/s -26% 321 MB/s Faster peak deep queue write.
AS-SSD Total
AS-SSD Total Score
1,084 Pts -5% 1,137 Pts +5%
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
84.3 MB/s -48% 125 MB/s Much faster peak deep queue mixed IO.
ADQ Read
Avg. 4K-64Thread Read Speed
189 MB/s +5% 180 MB/s -5%
ADQ Write
Avg. 4K-64Thread Write Speed
157 MB/s -27% 200 MB/s Faster deep queue write.
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
49.8 MB/s -49% 74 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) May 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: DX9 and DX10 3D performance.
  • - 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.

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Intel Core i7-6700K $320Nvidia GTX 970 $269Samsung 850 Evo 250GB $88
Intel Core i5-6600K $220Nvidia GTX 980 Ti $550Samsung 850 Pro 256GB $118
Intel Core i7-4790K $325AMD R9 380 $180Samsung 850 Evo 500GB $150
Seagate Barracuda 7200.14 3TB $73HyperX Fury DDR4 2133 C14 2x8GB $59SanDisk Extreme 64GB $30
Seagate Barracuda 7200.14 1TB $50G.SKILL Trident Z DDR4 3200 C16 2x8GB $85SanDisk Extreme 32GB $21
WD Black 1TB (2013) $74Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 16GB $15
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