So I just hooked up my new AMD FX-8120 on a gigabyte mainboard...and apparently it's quite good at not running much voltage when idling - I'm getting 8 deg. C idle temps on the CPU (core voltage at idle is only 0.94V). I'm watercooling it; by contrast the Phenom II quad-core I just replaced idled around 38C. I'm using CPUID to obtain the temps.
I'm not quite sure I believe it, but it seems to be working fine. And it means my video card is running a lot cooler too: 34C at idle instead of 50C. Guess I'll see what happens when I run games tonight