Intel Optane DC P5800X 800GB SSD Review

Sustained Sequential Read Performance – 1 Thread

Intel rate the Optane DC P5800X as up to 7,200MB/s for reads and up to 6,100MB/s for writes. Using a single thread the drive peaked at 7,383.62MB/s at QD8 confirming the official read figure, before dropping back very slightly to finish the test run at 7,371.69MB/s (QD128). Writes peaked at QD4 at 5,269.8MB/s, some way short of the official figure.

Sustained Sequential Read Performance – 4 Threads

Using four threads the drive peaked at 7,356.42MB/s for reads and 5,549.72MB/s both at QD8. More importantly, using 4 four threads at QD1 sees the read performance rise from 5,268.83MB/s with a single thread up to 7,326.85MB/s. Similarly, the write performance at QD1 rises from 4,774.13MB/s to 5,449.02MB/s. It's also worth noting how constant the drive is across the tested queue depths.

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