i have a G4 (gigabit) with the original, dual450 processor, an eMac with a single 800 and another G4 that i was given for free (still gigabit) with a single 1GHz. All of them have 512MB of RAM installed. How come the dual 450 is WAY faster in general than all the others? in my mind the 1GHz one should rule, yet it is really laggy and slow. Sorry if this is a bad question.