I just upgraded my 400 Mhz G4 Powermac with a 1.4 Ghz processor (I got the Gigadesigns upgrade). It has the Apollo G4 chip that is supposed to have 256k of L2 cache running at processor speed, and 2 M of L3 cache running at some fraction (1/6th I think) of the processor speed. But when I ran Xbench, it told me that the L2 cache was only running at 700 Mhz, and that the L3 cache was running at 4.17 Ghz!! Anyone know what's up with that?