HDTune tests a similar level of features that HDTach does, but with a slightly different access pattern and thus can provide us with an additional set of benchmark numbers to compare between storage configurations. Here we can get the minimum, maximum and average transfer rates as well as the burst rates and access times. CPU utilization has proven negligible with modern processing horsepower, and is no longer included.
This test shows just how inconsistent burst testing an SSD can be, and here’s as good of an example as any. We know octane does way better than 160MB/sec on reads, yet here HDTune gives poor results. For now we’ll just use these as a qualitative cross check between the 520 and other SandForce units. In that respect, it passes muster.
No surprises here, as the 520 goes, well, 520MB/sec – just like the other SandForce driven units.