Clock for clock, core for core, which CPU is faster? The benchmarks (on universal apps) I've seen show a Core Duo iMac 1.83 Ghz doing most things around 70% as fast as a Powermac G5 dual 2.0 GHz. I know there are other differences in the systems, like the video card, memory bus speed, but that still makes me think the G5 is faster than a Core Duo. But I keep hearing people mention that the Core Duo is fater than the G5. So which is it?