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.
In our four-treaded 4K random read tests we couldn't get close to the official maximum of 1,500K IOPS. The best figure we saw was 512,082 IOPS (QD16) before the performance dropped back to 511,779 IOPS at the end of the test (QD32).
4K Random Read v QD compared.
Even though our test results couldn't get anywhere near the official figure, the drive still ranks as the fastest consumer NVMe drive we've seen to date in all the tested queue depths.