Western Digital Ultrastar DC HC560 20TB HDD Review

CrystalDiskMark is a useful benchmark to measure theoretical performance levels of hard drives and SSD’s. We are using V6.0.0. to test HDD drives.

In the CrystalDiskMark 4K QD32 T1 test, the 20TB Ultrastar DC HC560 read test result of 3.451MB/s sees it sitting in third place in our results chart just behind the 14TB and 20TB IronWolf Pro's. However, its write result of 7.92MB/s is much better than both the Seagate drives and is by far the fastest write result for any WD HDD we've seen to date.

Looking at the benchmark result screen we could confirm the official transfer rate of 269MB/s with a Sequential read result of 272MB/s with writes coming in at 268MB/s.

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