Sandisk WD_Black SN8100 2TB Gen 5 SSD Review

1. Introduction2. WD_Black SN8100 2TB3. Testing Methodology4. CrystalDiskMark5. ATTO Disk Benchmark6. AS SSD7. 128KB Sequential Performance8. 4K Random Read v QD Performance9. 4K Random Write v QD Performance10. 4K 70/30 Mixed Performance11. 4K Random Performance QD1-QD812. Throughput13. PCMark 10 Full System Drive Benchmark14. 3DMark Storage Benchmark 15. Final Fantasy XIV Endwalker Official Benchmark16. Temperatures17. Real Life File Testing18. Closing Thoughts19. View All Pages

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.

The official maximum 4K random read figure for the drive is 2.3M IOPS. Using our four-threaded tests, the best we saw from the tested drive was 593,319 IOPS, nowhere close to the official rating.

4K Random Read v QD compared

At QD1, the test result of 112,207 IOPS sees the drive as the fastest we've seen to date. In contrast, at QD2 it's the slowest we've seen. But the drive recovers well as it tops the table again by QD4 and at the end of the test run at QD32.

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