xPismo said:Core 2 Duo's have already been OC'd to 3.8/4Ghz.
i may buy a mini just to play with OC'ing and use as a renderer.
I don't think there are any overclocking tools for OS X and Intel chips right now, I'm sure it'll come but not for a while.
I've heard that the Core Duos are about 70mph and the Core 2 Duos can get up to 85 on a good day. Apart from when using Photoshop, then they get stuck in 3rd gear which is a bit of a drag.