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.
Corsair rate the 4K random read performance of the 2TB MP600 GS as up to 530K IOPS. With our 4-threaded testing, we couldn't get close to that figure, the best we saw was 360,398 IOPS (QD32). We ran a quick test of the drive using eight threads and got a result of 573,107 IOPS, confirming the official figure.
4K Random Read performance v QD compared.
At QDs 1 and 2, the performance of the drive is good enough to see it in the top ten fastest consumer drives we've tested to date. However, as the queue depth deepens the performance begins to trail off.