Kioxia BG5 1TB SSD Review

We used CrystalDiskMark 8‘s custom settings to test the 4K random read performance of the drive through a range of queue depths. The setup for the tests is listed below.

Transfer Request Size: 4KB, Outstanding I/O: 1-32.

Using our four threaded 4K random read tests we couldn't get close to the maximum official random read figure of 500,000 IOPS, with 359,765 IOPS being the best result we saw. We did a quick test of the drive using eight threads and could confirm the official figure with a test result of 547,760 IOPS.

4K Random Read v QD Performance compared.

At QD 1 and 2, the BG5 sits in the top five of the drives we have tested. As the queue depth deepens the drive starts to drop down the table. By QD32 it's in the bottom half of our results chart.

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