Samsung 990 Pro 2TB Review

CrystalDiskMark is a useful benchmark to measure the theoretical performance levels of hard drives and SSDs. We are using v8.0.

In the CrystalDiskMark 4K QD1 test, the 990 Pro has a slightly slower read performance than the heatsink version of the previous generation SSD 980 Pro but a better write performance than the older drive.

With the CrystalDiskMark 8 default test, we could confirm the official Sequential performance figure of 7,450MB/s with a test result of 7,477MB/s but came up just shy of the official 6,900MB/s maximum write figure at 6,885MB/s.

Using CrystalDiskMark 8's Peak Performance Profile we could confirm both official read/write Sequential figures. The tested read figure of 7,256MB/s saw the drive in the top spot on our results chart although the write performance wasn't quite as strong.

When it came to tested 4K performance our results scores came nowhere close to the official maximums. Samsung rate the 2TB 990 Pro at up to 1,550,000 IOPS for reads and up to 1,400,000 IOPS for writes. The best we saw using the default Peak Performance Profile was 627,466 IOPS for reads and 510,197 IOPS for writes.

Using the Real World Profile benchmark, the drive landed in the top ten of drives we've tested with a read result of 4,242MB/s with writes doing better at 5,770MB/s.

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