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 515.4 MB/s reads and 445.3 MB/s writes. 512K test results reached 342.2MB/s read and 434 MB/s write performance. 4K tests produced 26.64MB/s read and 88.76MB/s write performance. While the sequential read speeds were again very good, the 4K random transfer speeds with 32 commands queued up were in the bottom quarter of our results.
240GB SX930 SSD CrystalDiskMark Results
The chart below summarizes 4K random transfer speeds with a command queue depth of 32. The ADATA SX930 falls in the bottom quarter of results in this specific test, behind even “value” drives like the Crucial BX100 and ADATA’s own SP610. However, remember that consumer workloads are rarely (almost never) going to queue up 32 outstanding I/O commands, so this particular metric is really only relevant for servers.
In the next section, we continue our testing using Iometer to measure input/output performance…