WD_Black SN770M 2TB SSD Review

1. Introduction2. WD Black SN770 - 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 Benchmark15. Final Fantasy XIV Endwalker Official Benchmark16. Drive Temperatures17. Real Life File Testing18. Closing Thoughts19. View All Pages

We used CrystalDiskMark 8’s custom settings to test the 4K 70/30 mixed read/write performance of the drive through a range of queue depths.

The WD_Black SN770M has no problem dealing with our 70/30 read/write tests either using a single thread or with four threads. With a single thread, the drive produces 19,508.9 IOPS (79.908MB/s) at QD1 climbing to finish the test run at QD32 with 215,639 IOPS (883.257MB/s). Using four threads the drive climbs from 78,356.5 IOPS (320.948MB/s) at QD1 to 549,147 IOPS (2,249.31MB/s) at QD32.

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