Geometry transformation engine
This engine is inside the main CPU chip. It gives it additional (vector-)math instructions used for the 3D graphics.
Features:
* Operating Performance of 66 MIPS
* 360,000 Flat-Shaded Polygons per second
* 180,000 texture mapped and light-sourced polygons per second
Sony originally gave the polygon count as:
* 1.5 million flat-shaded polygons per second
* 500,000 texture mapped and light-sourced polygons per second
These figures were given as a ballpark figure for performance under optimal circumstances, and so are unrealistic under normal usage.
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