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MyDigitalSSD 240GB SATA m.2 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, and all drives are formatted with NTFS on the Intel P67 chipset configured to use AHCI-mode. 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 sequential speeds reaching 525.6MB/s reads and 169.7 MB/s writes. 512K test results reached 302.9MB/s read and 125.5 MB/s write performance. 4K tests produced 36.68MB/s read and 64.98MB/s write performance. While the sequential read speeds were again very good, sequential write speeds in this benchmark were poor; the 4K results were sub-par, and once the queue depth is expanded to 32, performance craters, with read speeds among the slowest we’ve ever seen in this benchmark.

MyDigitalSSD 240GB m2 SSD CrystalDiskMark

240GB MyDigitalDiscount m.2 SSD CrystalDiskMarkResults

The chart below summarizes 4K random transfer speeds with a command queue depth of 32. The MDM242-SB-256 m.2 drive performs very poorly in this test, being handily beaten in read speeds by the Intel SSD 311 series, which was launched in 2011.

While most consumer workloads will never approach QD32, this drive’s performance in this test is still disappointing.

CrystalDiskMark-4K_Results

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


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1 comment

  1. Michael

    Awesome review, thank you for all the details mate!!

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