The vector operationalunit which is loaded onto PowerPC G4. Integer arithmetic unit and floating point arithmetic unit and in parallel, it operates.

Lumping togetherthe data of 128 bits, it receives, this can divide into severalintegers and the number offloating-points and can process.

AltiVec lumping together the enormous data, because it can process, low being possible to execute abundant processing even with the clock, makes, the processing which such asespeciallyanimated picture playback handles the mass data and 3D rendering proud.

As for naming, AltiVec it is something where the Motorola corporation designates, butatthe Apple corporation which sells the PowerPC G4 system the same function is called "Velocity Engine".