OCZVTX4-25SAT3-256G
SamsungMZ-7TE250BW

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

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

Real World Speed
Performance profile from 79,608 user samples
4,197 User Benchmarks
Best Bench: 105% 201GB free
Worst Bench: 64% 15GB free
Poor: 64% Great: 105%
SPEED RANK: 167th / 927
75,411 User Benchmarks
Best Bench: 94% 124GB free
Worst Bench: 54% 51GB free
Poor: 54% Great: 94%
SPEED RANK: 281st / 927
Effective Speed
Effective SSD Speed
86.7 % Slightly faster effective speed.
+11%
77.9 %
Read
Avg. Sequential Read Speed
456 MB/s 482 MB/s Slightly faster read speed.
+6%
Write
Avg. Sequential Write Speed
401 MB/s Faster write speed.
+28%
313 MB/s
4K Read
Avg. 4K Random Read Speed
26 MB/s 35.4 MB/s Much faster random read.
+36%
4K Write
Avg. 4K Random Write Speed
85.4 MB/s Much faster random write.
+53%
56 MB/s
Mixed
Avg. Sequential Mixed IO Speed
387 MB/s Faster mixed IO speed.
+19%
324 MB/s
4K Mixed
Avg. 4K Random Mixed IO Speed
25.7 MB/s Faster random mixed IO.
+27%
20.3 MB/s
Read
Peak Sequential Read Speed
497 MB/s 510 MB/s +3%
Write
Peak Sequential Write Speed
482 MB/s Much faster peak write speed.
+37%
351 MB/s
4K Read
Peak 4K Random Read Speed
33.2 MB/s 44 MB/s Much faster peak random read.
+33%
4K Write
Peak 4K Random Write Speed
124 MB/s Much faster peak random write.
+58%
78.6 MB/s
Mixed
Peak Sequential Mixed IO Speed
434 MB/s Faster peak mixed IO speed.
+21%
358 MB/s
4K Mixed
Peak 4K Random Mixed IO Speed
36.5 MB/s Much faster peak random mixed IO.
+38%
26.5 MB/s
Market Share
Based on 6,774,655 SSDs tested.
Market Share
Market Share (trailing 30 days)
0.07 % 1.43 % Insanely higher market share.
+1,943%
Value
Value For Money
30 % 44.5 % Much better value.
+49%
User Rating
UBM User Rating
61 % +3% 59 %
Price
Price (score)
$400 $199 Much cheaper.
+50%
Age
Newest
73 Months 58 Months More recent.
+21%
DQ Read
Peak 4K-64Thread Read Speed
335 MB/s 361 MB/s Slightly faster peak deep queue read.
+8%
DQ Write
Peak 4K-64Thread Write Speed
316 MB/s Much faster peak deep queue write.
+32%
239 MB/s
AS-SSD Total
AS-SSD Total Score
1,131 Pts Slightly stronger server IO.
+8%
1,051 Pts
DQ Mixed
Peak 4K-64Thread Mixed IO Speed
123 MB/s Much faster peak deep queue mixed IO.
+47%
83.9 MB/s
ADQ Read
Avg. 4K-64Thread Read Speed
189 MB/s +3% 183 MB/s
ADQ Write
Avg. 4K-64Thread Write Speed
205 MB/s Much faster deep queue write.
+39%
147 MB/s
ADQ Mixed
Avg. 4K-64Thread Mixed IO Speed
75.7 MB/s Much faster deep queue mixed IO.
+55%
48.8 MB/s
Capacity
Capacity
256GB 250GB
ADVERTISEMENT

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]

MORE DETAILS

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]

MORE DETAILS

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]

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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 userbenchmark.com.
  • - 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.
CPUGPUSSD
AMD Ryzen 5 1600 $169Nvidia GTX 1070 $447Samsung 850 Evo 250GB $100
Intel Core i7-8700K $325Nvidia GTX 1060-6GB $295Samsung 850 Evo 500GB $137
Intel Core i7-7700K $299AMD RX 480 $330Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $41
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $960SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Extreme 16GB $20
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