The instructions for the tweak are for the via chipset. According to the information there the tweak will work for both amd and intel chipsets, but the instructions are for the via chipset.
It would stand to reason that because the tweak itself affects the chip as long as you could find the appropriate registers using wcpredit it should work, but I am not a computer professional.
Mabe somebody else could answer that one.
Probably be a good Idea to read about the tweak and then as you understand how it works, then do a search on google for other chipsets.