The ADATA Ultimate SU750 1TB SSD Review: Realtek Does Storage, Part 1

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 ADATA Ultimate SU750 actually manages to outperform one of the mainstream SATA drives on the Light test, though that's more due to the Crucial MX500 misbehaving than the SU750 being fast. When the test is run on a full drive, the SU750 drops to last place, but isn't far behind the other two entry-level SATA drives.

The average latency scores for the SU750 are fine when the Light test is run on an empty drive, and are at least better than the other entry-level drives for the full-drive test runs. The 99th percentile latency scores are similarly not too far behind mainstream SATA drives, and the full-drive latency doesn't have the QoS problems the Samsung 860 QVO experiences.

The SU750 has a bit of a problem with average read latency when the Light test is run on a full drive, but otherwise its average read and write latency scores are barely slower than typical mainstream SATA drives.

The 99th percentile read latency scores from the SU750 suffer a greater full-drive performance penalty than most other SATA drives experience, but nowhere near as bad as the 860 QVO. The SU750's 99th percentile write latency is fine for both empty and full drive test runs.

As usual, the SU750 has some of the highest energy usage scores, matched by the Samsung 860 QVO and the two NVMe drives. However, unlike the more difficult ATSB tests, the gap between the SU750 and the mainstream SATA drives is relatively small.