yeah, i remember getting a gf2 mx to mod into a quadro way back when. lol.
there's no gain in gaming performance, and most of the boost comes from rendering wireframes(aa on the lines, faster camera translates). which is why most of the specperf scores get the boost on cad and 3dsMx.
don't know if you still need those custom drivers/profiles from autodesk to get the top performance out of the quadros.