1. Introduction2. Samsung 990 Pro 2TB3. Testing Methodology4. CrystalDiskMark 8.05. 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. Performance Stability16. Drive Tempretures17. Real Life File Testing18. Closing Thoughts19. View All Pages

We used CrystalDiskMark 8‘s custom settings to test the Sequential read and write performance of the drive through a range of queue depths. The setup for the tests is listed below.

128KB Sequential Read / Write.

Transfer Request Size: 128KB, Thread(s): 1, Outstanding I/O: 1-32.

In our own Sequential tests could confirm the official read/write ratings of up to 7,450MB/s and up to 6,900MB/s for writes with a read test result that was slightly faster at 7,485MB/s (QD32) and a write result that was slightly slower at 6,884MB/s (QD16).

128KB Sequential Read v QD performance.

The drive sits in the top five of the Sequential read chart at QD1 before slowly dropping down the chart at QD2 and in particular QD4 before rocketing back to the top of the stack at QD32.

128KB Sequential Write v QD performance.

When it comes to Sequential write performance, the drive sits in mid-table at queue depths one and two before rising up the chart at QD4 and finally sitting in the top five at QD32.

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