Samsung SSD 980 1TB Review

Random write performance for the drive is quoted at up to 54,000 IOPS for QD1 (1 thread) and up to 480,000 IOPS for QD32 (16 threads). In our tests with 4-threads, we got a figure of 53,054 IOPS at QD1, peaking at 89,416 at QD4.

4K Sustained Random Write v QD comparison.

When the SSD 980 is pushed, the lack of a dedicated DRAM chip becomes apparent as the drive is in the bottom three throughout the random write tests. Even so after QD1 it is very consistent in performance.

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