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OCZ RD400 PCIe NVMe SSD Review

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CrystalDiskMark 3.0 Tests

CrystalDiskMark 3.0 is a file transfer and operational bandwidth benchmark tool from Crystal Dew World that offers performance transfer speed results using sequential, 512KB random, and 4KB random samples. For our test results chart below, the 4KB 32-Queue Depth read and write performance was measured using a 1000MB space. CrystalDiskMark requires that an active partition be set on the drive being tested. Benchmark Reviews uses CrystalDiskMark to illustrate operational IOPS performance with multiple threads. In addition to our other tests, this benchmark allows us to determine operational bandwidth under heavy load.

CrystalDiskMark uses compressed data, so sequential file transfer speeds are reported lower than with other tools using uncompressed data. For this reason, we will concentrate on the operational IOPS performance in this section.

CrystalDiskMark 3.0 reports single-threaded sequential speeds reaching 1589MB/s reads and 1468MB/s writes. 4K tests at a queue depth of 32 produced 762MB/s read and 571MB/s write performance.

Toshiba RD400 512GB tdriver cdm

512GB OCZ RD400 SSD CrystalDiskMarkResults

The chart below summarizes 4K random transfer speeds with a command queue depth of 32. Here the native NVMe driver pushes the OCZ RD400 to the top of the chart, beating even the Samsung 950 PRO in RAID 0!

Toshiba RD400 CDM_2

In the next section, we continue our testing using Iometer to measure input/output performance…


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2 comments

  1. AMT

    Could we get a test comparison to load certain games, like load times comparisons to sata ssd?
    example, Star Citizen can have some pretty long load times with SATA SSD, would be nice to know if these drives help out much in these situations etc.

    1. Olin Coles

      While the storage device certainly has a lot to do with load time, the speed and architecture of RAM and CPU are also heavily involved. It would be disingenuous to compare one to another unless the user has the exact same system that we use for testing, which is very unlikely.

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