"The no. in the B64 refered to its power and bittage. NES was 8-bit, SNES was 16-bit, PSone was 32-bit, and so on. I believe it has something to do with the amount of colors or complecity each moveable rendered thing is. Or I could be totally wrong, either idea works."
I know that. That's why I said I was just tossing guesses around.