Corsair MP600 Pro XT Gen4 NVMe SSD Review – Yet Another Shining Example of Phison E18 Success


Crystal Disk Benchmark is used to measure read and write performance through sampling of random data which is, for the most part, incompressible. Performance is virtually identical, regardless of data sample so we have included only that using random data samples.



Crystal DiskMark results are very strong and run side-by-side with the Seagate Firecuda 530.  These match listed specs.


The toughest benchmark available for solid state drives is AS SSD as it relies solely on incompressible data samples when testing performance. For the most part, AS SSD tests can be considered the ‘worst case scenario’ in obtaining data transfer speeds and many enthusiasts like AS SSD for their needs.






AS SSD results are decent, yet not over-powering.  Perhaps the strength here lies in the low 4K random read at 96MB/s.


Anvil’s Storage Utilities (ASU) are the most complete test bed available for the solid state drive today. The benchmark displays test results for, not only throughput but also, IOPS and Disk Access Times. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and use in our benchmark testing.


The AJA Video Systems Disk Test is relatively new to our testing and tests the transfer speed of video files with different resolutions and Codec.


TxBench is one of our newly discovered benchmarks that we works much the same as Crystal DiskMark, but with several other features. Advanced load benchmarking can be configured, as well as full drive information and data erasing via secure erase, enhanced secure erase, TRIM and overwriting. Simply click on the title for a free copy.


  1. Thanks for the review.

    Please answer, why you say “The Corsair MP600 Pro XT Gen4 NVMe SSD is the second best result we have ever received in testing OS data, just behind that of the Plextor M10P.”
    when the WD_Black SN850 makes this 15 GB OS-file transfer according to your test in 62 sec only!

    Can you explain how the wd black 850 achieves this, what no other companie’s ssd can do?
    The “older” 96-layer nand beats even the new 176-layer nand.

    • The SSD you are referring to was tested with the AMD Test Bench and the drives compared in this result are all tested with the Intel Test Bench, as stated at the top of the chart. As for that result, that review fully explains our surprise and repeated testing with the same times over and over.

      • No explanations or guesses how the SN850 achieves that 😉
        Any number of the MP600 Pro XT is higher; in some cases by a lot.
        I think I found the reason for that in another review: The big 281GB slc cache + controller optimized for 4kB IOs in the first run; second run it gets slower by a lot.
        Not normal thing to do I guess?

        Can you please explain if all/how many the ssd we see nowadays have
        1) static dedicated slc-cache
        2) pseudo slc-cache (taken portion from the tlc-nand)
        3) dynamic pseudi slc-cache (like 2), but dynamicall adapted, changing size if needed.
        If there are changes, how I know as a consumer?

  2. Hi there! Thank you so much for the review. this was helpful and information..

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