To clarify for those who weren't around when Dell was selling the 80GB Raptors. Basically, the 74GB Raptor actually uses 80GB platters, but they're "short stroked" so that the inner (slowest) part of the platter isn't used, thereby increasing the average transfer rate of the drive. The Dell versions are the same physical drives, just without the short stroking in place. The performance should be same for the first 150GB and lower on the 150-160GB part of the drive.
I know somebody (DougLite?) posted HdTach plots of the 74GB and 80GB Raptors and it was very obvious that it was the same drive with just an extra zone at the end where it's normally not used.
I know somebody (DougLite?) posted HdTach plots of the 74GB and 80GB Raptors and it was very obvious that it was the same drive with just an extra zone at the end where it's normally not used.