It's much more like u r using an INTEL HT CPU on your PC, the benefit is much better while multi-tasking. But with very low heat, much lower then you even can image while FX and P4 are out there. I know the test was done under air-cooling with a normal Semprone (754) cooler. There is a reason to use RS480 M/B testing this, but couldn't say much about it. It's Bios limitation not to allow OC on this M/B, not the chipset itself.
OK. above are all I have heard from someone.... but all facts.