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CrystalDiskMark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s. We are using v8.0.5.
When tested with CrystalDiskMark 8's 4K QD1 1 Thread test, the 2TB WD_Black SN8100 produced a read score of 124.49MB/s, the fastest we've seen to date for a Gen 5 consumer drive. However, its write result of 339.64MB/s is only the fourth fastest.
We can confirm the official maximum read/write speeds of the 2TB drive – up to 14,900MB/s and 14,000MB/s, respectively, with a default read test result of 14,937.44MB/s with a write result of 14,103.28MB/s.
The WD_Black SN8100's Sequential read result of 14,937.44MB/s is the fastest we've seen for a Gen 5 consumer drive, but its write test result of 14,103.28MB/s is slightly slower than Kingston's Fury Renegade G5 drive.
Peak Performance profile
Switching over to the default Peak Performance profile, we saw a 4K random read best test result of 2,227,994 IOPS, a little shy of the official maximum of 2.3M IOPS. Even though it's shy of the official rating, it is the first drive we've seen that's cracked the 2M IOPS mark in this test. The best 4K random write score we saw was 1,937,871 IOPS, which is well short of the official maximum of 2.4M IOPS, but even so, it's still the fastest 4K write result we've seen so far in this test for a consumer Gen 5 drive.
Using this test profile, we could again confirm the official Sequential read / write maximums with results of 14,936.87MB/s and 14,099.75MB/s, respectively.
As with the default test, the drive is the fastest we've seen to date in the Peak Performance profile, but only second best in terms of Sequential writes.
Real World profile
Using the Real World profile sees the drive sitting in second place behind the Samsung SSD 9100 PRO with a read result of 9,954.09MB/s. However, its write score of 11,314MB/s is a good deal faster than the Samsung drive.
