I'm taking a class at my university and my professor claims that 800 mhz (AMD Opteron) is the fastest front side bus in production. I know better than that because the G5's FSB is equal to half the clock speed of the processor. What is the actual front side bus speed, i.e. what are people actually getting in real world use vs. laboratory testing. He doesn't want Apple marketing nonsense (I showed him that already), he wants technical details and proof (screenshots? ) that the FSB of a G5 is equal to half the clock speed of the processor. HELP ME WIN THIS ONE GUYS!