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OCZ Vertex 4 256 GB Solid State Drive Review

We take a look at OCZ’s latest high performance 256 GB solid state drive, the Vertex 4. Let’s see how it compares to the competition.

Home » OCZ Vertex 4 256 GB Solid State Drive Review

Compressible Data Test

Contents

  • 1. Introduction
  • 2. A Closer Look
  • 3. How We Tested
  • 4. Compressible Data Test
  • 5. Incompressible Data Test
  • 6. Access Time
  • 7. Conclusions

As you will have gathered from the previous page, we measured the performance of each drive using two different programs: CrystalDiskMark and AS SSD. It is important to note that we connected the SSDs to a SATA-600 port on our motherboard rather than a SATA-300 port that could cause performance limitations.

We set CrystalDiskMark to “All 0x00 Fill Mode” to evaluate the performance of the SSD when dealing with compressible data.

OCZ Vertex 4 256 GB Solid State Drive Review

In the sequential read test using compressible data, the Kingston HyperX 3K outperformed the OCZ Vertex 4 by a margin of 18 percent. However, in the sequential write test using compressible data, the two
drives exhibited a similar level of performance.

OCZ Vertex 4 256 GB Solid State Drive Review

Moving on to the random read test using 512 KB blocks, the Kingston HyperX also came out on top, achieving 33% better performance than the OCZ Vertex 4. Once again, in the write test using 512 KB blocks, the two drives exhibited a similar level of performance.

OCZ Vertex 4 256 GB Solid State Drive Reviewy

In the random read test using 4 KB blocks, the Kingston HyperX 3K achieved the best level of performance, scoring 13% better than the OCZ Vertex 4. However, in the random write test using 4 KB blocks, the Kingston HyperX 3K’s lead narrowed to only 3% over the OCZ Vertex 4.

Continue: Incompressible Data Test

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