We used CrystalDiskMark 8‘s custom settings to test the 4K random Write 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.
As with 4K random reads, Seagate rates the random write performance of the FireCuda 530 as up to 1,000,000 IOPS. As with the random reads we couldn't get close to this figure with our four-threaded testing with the drive peaking at 329,504 IOPS at QD4.
4K Random Write v QD comparison
In our testing, the drives best performance in relation to the other drives around it comes at QD1. At all the tested queue depths the FireCuda 530 shows a leap in performance over the previous generation FireCuda 520.