IOMeter - No SSDs
Having SSDs in the mix really distorts our IOMeter graphs, so we've omitted them for another look at the results.

As you can see, the new VelociRaptor has a pronounced lead over the Caviar Black 2TB, which is very similar to Western Digital's enterprise-class RE4. The new Raptor isn't much faster than the old one here, but given the similar access times between the two, we didn't expect it to be.

IOMeter registers less than 0.5% CPU utilization on our Core i5-750 with each mechanical drive.