Average Bench: 90.9% (261st of 1011)

Based on 6,338 user benchmarks.  Models: OCZ-VERTEX4, OCZ-VERT OCZ-VERTEX4, OCZ-VERT EX4

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]


Excellent average bench

The OCZ Vertex 4 256GB averaged just 9.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the OCZ Vertex 4 256GB near the top of the comparison list.


Avg. 4K-64Thread Mixed IO Speed 270MB/s
Avg. 4K Random Write Speed 94.5MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the OCZ Vertex 4 256GB is 50.4%. This is a relatively wide range which indicates that the OCZ Vertex 4 256GB performs inconsistently under varying real world conditions.


Avg. Sequential Mixed IO Speed 263MB/s
Avg. Sequential Read Speed 382MB/s

Average Bench

(Based on 6,338 samples)
Min Avg Max
312 Read 382 467
221 Write 386 460
198 Mixed 263 316
124 SusWrite 348 452
77.6% 345 MB/s
Min Avg Max
20 4K Read 27.9 34.2
45 4K Write 94.5 135
25.5 4K Mixed 35 42.8
137% 52.4 MB/s
Min Avg Max
33.6 DQ Read 292 344
107 DQ Write 276 355
38.2 DQ Mixed 270 338
207% 279 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
59GB free
Firmware: 1.5
SusWrite @10s intervals: 408 398 405 405 402 401 MB/s
Read 373
Write 351
Mixed 269
SusWrite 403
79% 349 MB/s
4K Read 35.1
4K Write 130
4K Mixed 40.5
174% 68.5 MB/s
DQ Read 342
DQ Write 316
DQ Mixed 320
242% 326 MB/s
234GB free
Firmware: 1.5
SusWrite @10s intervals: 280 381 466 476 475 476 MB/s
Read 460
Write 467
Mixed 322
SusWrite 426
94% 419 MB/s
4K Read 30
4K Write 130
4K Mixed 33.4
157% 64.5 MB/s
DQ Read 335
DQ Write 328
DQ Mixed 334
250% 332 MB/s
113GB free (System drive)
Firmware: 1.5
SusWrite @10s intervals: 328 328 357 355 355 354 MB/s
Read 386
Write 360
Mixed 259
SusWrite 346
76% 338 MB/s
4K Read 31
4K Write 97.8
4K Mixed 37.8
147% 55.5 MB/s
DQ Read 344
DQ Write 314
DQ Mixed 320
242% 326 MB/s
75GB free
Firmware: 1.5
SusWrite @10s intervals: 279 373 400 401 400 399 MB/s
Read 366
Write 407
Mixed 259
SusWrite 375
79% 352 MB/s
4K Read 27.3
4K Write 104
4K Mixed 33.9
140% 54.9 MB/s
DQ Read 341
DQ Write 334
DQ Mixed 318
244% 331 MB/s
6,338 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 18,504,076 SSDs tested.


Approx. $190 @ launch in Apr '12
AmazonUS $1003 months
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Typical Vertex 4 256GB Builds (Compare 7,721 builds) See popular component choices, score breakdowns and rankings.
Gaming 49%
Desktop 65%
Workstation 44%
Speed boat

Motherboard: Asus SABERTOOTH Z77 - $210

EDIT WITH CUSTOM PC BUILDER Value: 37% - Below average Total price: $847

Popular Vertex 4 256GB compatible motherboards:

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.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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Solid State Drive Rankings (Price vs Performance) October 2019 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 - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.


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

AS SSD Read/Write bench: 400/400...

Added 7 years ago.

Good (edit your comment) Add link

2 years ago.

Great drive, fast and reliable.


3 years ago.


4 years ago.

Excellent Drive, been 2 years not a single issue !

Very good

6 years ago.

Review  www.ssdreview.com/...

This benchmark is an outlier, showing an incredible 133 4K write.

Image  www.ssdreview.com/...
Aug '12 AS SSD Benchmark Test

Aug '12 AS SSD Benchmark Test

Review  www.hitechlegion.com/...

Review  hexus.net/...

Image  img.hexus.net/...
Apr '12 AS SSD Benchmark Test Score

Apr '12 AS SSD Benchmark Test Score

Review  www.legitreviews.com/...

Review  www.rwlabs.com/...

Image  rwlabs.com/...
Sep '12 AS SSD Benchmark Speed Result Firmware 1.5B

Sep '12 AS SSD Benchmark Speed Result Firmware 1.5B

Very good

7 years ago.

The OCZ Vertex 4 comes with a 5 year warranty, OCZ are trying to make up for poor quality control on previous models... Time will tell, but on the face of it this is the best performing (benchmark wise) SSD you can buy today.

1011 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

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