These guys do a lot of work to get those chips that fast.
Just about every one of them uses a "modified" motherboard to allow them to pump more current to the chips.
<< 3.6GHZ with 2.2V, he is frying his CPU. >>
You think they care, if they are running LN2 and modifying MB's to get them that fast?
I think it's impressive as hell, even if they can't run long term that way.
Over double the rated clock speed 1.6 @ 3.8, 3.9, 4.0......