HD Tune — Transfer rates
HD Tune lets us present transfer rates in a couple of different ways. Using the benchmark's "full test" setting gives us a good look at performance across the entire drive rather than extrapolating based on a handful of sample points. The data created by the full test also gives us fodder for a line graph.
To make the line graph more readable, we've excluded everything but the high-capacity SSDs. The mechanical drives have also been grayed out throughout our graphs. Otherwise, the results are colored by drive maker, with the Octane set apart from the other OCZ SSDs in a different shade.
The Octane's sequential read speeds aren't fast enough to put it in the first tier, which is made up of SandForce-based drives and Crucial's m4. Keeping up with the Intel 510 Series is no small feat for this first Everest-based SSD, though, and it's hardly far behind the leaders.
If we look at the line graph, there's a little bit of fluttering in the Octane's read speed as the test progresses through the drive's capacity. The amplitude of the noise is small enough that I wouldn't worry about it.
The same can't be said for the wildly oscillating write speeds of the Force SSDs. This behavior is typical of consumer SandForce drives with the usual 7-8% overprovisioning. Although the Octane's write speeds aren't quite as fast, they are considerably more consistent. That's good enough to slot the Indilinx drive into fourth place in average write speeds.
HD Tune's burst speed tests are meant to isolate a drive's cache memory.
The Octane has the biggest cache of the bunch, but it doesn't score well in HD Tune's burst speed tests. Everything else is faster with the exception of Intel's 320 Series, which is slower only in the burst write test.
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