The Intel Optane Memory H10 Review: QLC and Optane In One SSDby Billy Tallis on April 22, 2019 11:50 AM EST
AnandTech Storage Bench - Light
Our Light storage test has relatively more sequential accesses and lower queue depths than The Destroyer or the Heavy test, and it's by far the shortest test overall. It's based largely on applications that aren't highly dependent on storage performance, so this is a test more of application launch times and file load times. This test can be seen as the sum of all the little delays in daily usage, but with the idle times trimmed to 25ms it takes less than half an hour to run. Details of the Light test can be found here. As with the ATSB Heavy test, this test is run with the drive both freshly erased and empty, and after filling the drive with sequential writes.
The Intel Optane Memory H10 is generally competitive with other low-end NVMe drives when the Light test is run on an empty drive, though the higher performance of the QLC portion on its own indicates that the H10's score is probably artificially lowered by starting with a cold Optane cache. The full-drive performance is worse than almost all of the TLC-based SSDs, but is still significantly better than a hard drive without any Optane cache.
The average and 99th percentile latencies from the Optane Memory H10 are competitive with TLC NAND when the test is run on an empty drive, and even with a full drive the latency scores remain better than a mechanical hard drive.
The average write latency in the full-drive run is the only thing that sticks out and identifies the H10 as clearly different than other entry-level NVMe drives, but the TLC-based DRAMless Toshiba RC100 is even worse in that scenario.
Unlike the average latencies, both the read and write 99th percentile latency scores for the Optane H10 show that it struggles greatly when full. The Optane cache is not nearly enough to make up for running out of SLC cache.