Yes.
Yeah, I wasn't speculating on that, just pointing out an aspect of an 8-cores that might have been missed.
This is why many folks are recommending the 2008 machines. You get them for the price of the current quads but you get all 8 cores and VERY equal overall performance between the 2.8 ⇆ 2.66 octads and the 3.2 ⇆ 2.93 octads. Plus you get the advantage of having an IDE interface, one more open SATA connection, and none of the bugs that come from using hyper-threading.
Where is the best place to get the 2008 models?