and the 603 has a 4 statge excution pipeline similar to the 604s altivic for ehanced proformance.

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604's and 603's don't have AltiVec. That was only Present in the G4's and the G5's. So no, they don't have it. Apple Added that with the 7400 CPU. The "Dolphin" chip in the gamecube was the ONLY Pre-G4 commercial CPU (IBM does not count) to have AltiVec. Essentially, it was a G3 (PPC 750) w/ an added Double-precision AltiVec unit added onto the process. I don't recall if the Altivec was integrated into the Die, or if it was a seperate area on the same chip...