WD Blue SN570 1TB SSD Review

1. Introduction2. WD Blue SN570 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 QD 1-812. Throughput13. PCMark 10 Full System Drive Benchmark14. Drive Temperatures15. Performance Stability16. Real Life File Testing17. Closing Thoughts18. View All Pages

We test the 4K random write performance of a drive through a range of queue depths. The setup for the tests is listed below.

4K Random Write

Transfer Request Size: 4KB, Outstanding I/O: 1-32.

As with the random read testing when it came to random writes our 4-threaded test results were nowhere near the official maximum figure of 450,000 IOPS, the best we saw was 265,743 IOPS at QD16.

4K Random Write v QD Performance compared.

The write performance of the drive is pretty consistent though as the drive sits mid-table throughout the tested queue depths. At all the tested queue depths apart from QD1, the Blue SN570 is faster than the previous Blue SN550.

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