WD Black SN770 1TB SSD Review

1. Introduction2. WD Black SN770 1TB3. 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. Performance Stability16. Drive Temperatures17. Real Life File Testing18. Closing Thoughts19. View All Pages

For the long term performance stability test, we set the drive up to run a 20-minute 4K random test with a 30% write, 70% read split, at a Queue Depth of 256 over the entire disk. The 1TB WD Black SN770 averaged 67,223 IOPS for the test with a performance stability of 86%.

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