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OCZ RD400 PCIe NVMe SSD Review

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ATTO Disk Benchmark

The ATTO Disk Benchmark program is free, and offers a comprehensive set of test variables to work with. In terms of disk performance, it measures interface transfer rates at various intervals for a user-specified length and then reports read and write speeds for these spot-tests. There are some minor improvements made to the 2.46 version of the program that allow for test lengths up to 2GB, but all of our benchmarks are conducted with 256MB total length. ATTO Disk Benchmark requires that an active partition be set on the drive being tested. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.

Toshiba RD400 512GB tdriver atto

512GB OCZ RD400 ATTO Benchmark Results

The results obtained with the Toshiba driver (very) narrowly edge out the results obtained with the Windows 10 native driver. In either case the results are at the very top of the single-drive performance rankings.

OCZ RD400 ATTO

This chart shows the difference in performance between SATA and m.2 SSDs very well: note that the SATA SSDs all bump up against the SATA bandwidth limit, while the m.2 SSDs provide up to five times the performance.

In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool…


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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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