Sure, the samples output some performance metrics when used with the verbose switch on ("-v"). VProc and Raster stand, respectively, for the vertex processing and rasterisation times in milliseconds. A Quake 3 model of around 1500 polygons with an alpha blended texture renders at around 20fps with doubling up enabled ("-d") and 16fps in full resolution. The lava lamp example runs at 8 fps.

The libraries are heavily fill-rate bound, but better performance can be achieved by using the simplier shading routines (dropping alpha blending and texture modulation).

Hope that this helps, if you have any problem running the examples please let me know.

da Monkey