PowerPC G4 Microprocessor

The PowerPC G4 microprocessor used in the Power Mac G4 computer has many powerful features, including a pipelined system bus, called MaxBus, that is more efficient than the system bus on the PowerPC G3 microprocessors.

The PowerPC G4 used in the Power Mac G4 computer has the following features:

• 32-bit PowerPC implementation
• superscalar PowerPC core
• Velocity Engine (AltiVec technology): 128-bit-wide vector execution unit
• high bandwidth MaxBus
• fully symmetric multiprocessing capability
• dual 32 KB instruction and data caches (level one)
• built-in 256 KB backside L2 cache
• support for up to 2 MB backside L3 cache
• on-chip L3 tag storage

To find more information, see the reference at "PowerPC G4 Microprocessor".