We used CrystalDiskMark 8‘s custom settings to test the 4K random read performance of the drive through a range of queue depths. The setup for the tests is listed below.
Transfer Request Size: 4KB, Outstanding I/O: 1-32.
Officially the 2TB CRAS C925 is rated as up to 700,000 IOPS for 4K random reads. With our four-threaded tests, we couldn't get close to the official figure with a peak test result of 438,191 IOPS at QD16.
4K Random Read v QD Performance Compared
Although we couldn't get close to the official 4K random read figure, it is a consistent drive, as the test results we did get saw the drive in the top ten results for all the tested queue depths