>Huh? PowerMac3,1 to PowerMac3,3 *do have* MPC7400.
If I recognise it correctly, the MPC7410 used in the 466 and 533 Mhz versions of Powermac 3,4 (Digital Audio) is "just" a low-power version of the MPC7400, so the differences should be marginal. The MPC7450 seems to be a major overhaul of the earlier G4 cpus.
