1. Introduction2. Samsung SSD990 EVO Plus 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. Gen 4.0 x4 v Gen 5.0 x2 Performance19. Closing Thoughts20. View All Pages

We used CrystalDiskMark 8 to test the random performance of the drive at lower queue depths (QD1 – QD8 where most of the everyday workloads occur) using 1 to 4 threads.

Random Reads.

In the QD1-QD8 random read tests the drive produced fairly smooth increases in performance as the queue depth deepened without any noticeable dramas. At QD1 the drive speed ranges from 20,759 IOPS (85.03MB/s) using a single thread up to 81,770 IOPS (334.93MB/s) using four threads. At a QD of 8, the single-thread performance had increased to 126,084 IOPS (516.44MB/s) while the four-threaded test reached 367,213 IOPS (1,504MB/s).

Random Writes.

In the 4K write tests, the performance rose quickly from QD1 to QD2 for all four tested threads with the fastest rise seen in the three and four-threaded tests. All four threads see the performance start plateauing out from QD2 onwards up to the end of the test run at QD8.

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