WD Blue SN570 1TB SSD Review

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 Read

At QD1 the performance of the 1TB WD Blue SN570 ranges from a lowly 16,714 IOPS (68MB/s) using a single thread up to 60,494 IOPS (247MB/s) using four threads. The performance increases steadily as the queue depth deepens for each thread count.

4K Random Write

When it comes to random writes, in each tested thread the performance rises sharply between queue depths 1 and 2, particularly the three and four threaded tests before beginning to level out through the rest of the tested queue depths.

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