We used CrystalDiskMark 8 to test the random performance of the drive at lower queue depths (QD1 – QD8 where most of the everyday workloads occur) using 1 to 4 threads.
4K Random Reads v QD
At QD1 the performance of the 2TB Seagate FireCuda 530 ranges from 20,183 IOPS (82.6MB/s) using a single thread up to 79,062 IOPS (323.8MB/s) using four threads. The drive's performance increases smoothly as the queue depth deepens for each thread count.
4K Random Writes v QD
Using a single thread the random write performance slowly increases from QD1 to QD2 before beginning to plateau out. Using two and four threads the drive accelerates sharply from QD2 to QD4 before they too start levelling off. The only time the performance doesn't seem to be levelling off to any extent is when it's being tested using three threads.