Sabrent Rocket 4 Plus 2 TB + PS5 Heatsink Review 31

Sabrent Rocket 4 Plus 2 TB + PS5 Heatsink Review

Synthetic Testing (Latency & Mixed Accesses) »

Random Access Performance

Our first batch of synthetic tests looks at 4K random IO. We test the drive at various queue depths ranging from 1–128. Besides random read and random write, we also test a mixed workload that randomly issues a read or write access request with equal probability.

4K Random Read Write IOPS


To provide some context, the charts below compare these results with other drives. We report a combined and weighted score that should cover real-life consumer workloads very well. Accordingly, the weighting factors were chosen to represent these mostly low queue depth loads.

4K Random Read Performance
4K Random Write Performance
4K Random Mixed Performance


Sequential Throughput

Next, we test sequential throughput with a large block size of 512 KB. As before, a third data point is provided for a mixed workload that randomly issues a read or write access request with equal probability.

512K Sequential Read Write Speeds


Using the same weighted scheme as for random IO, the charts below provide comparison data against other drives in the test group.

512K Sequential Read Performance
512K Sequential Write Performance
512K Sequential Mixed Performance
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