Before Nvidia entered the professional graphics arena with their original GeForce cards (and brought hardware T&L to consumer cards), there was a big difference between the two types.
All of the gaming cards required high fillrate in order to process textures in real time while the professional cards required geometry and lighting acceleration to rotate models with a large number of polygons. With this separation of function, a gaming card (like the TNT or Voodoo cards) would not work well for professional work and a professional card (Like HP Starbase Cards and 3D Labs stuff) would not work well for gaming cards.
Once NV released the GeForce they started the trend towards a gaming card that could do professional work and a professional card that could do gaming work.
I don't know what the fillrate of the wildcat card is, but it would probably not run games very well since it probably has a low fillrate. As far as drivers go, it might run Open GL games well (if it does have good fillrate), but I don't know about DX ones.
The 6800 Ultra, which I think is very similar to the FX4000 or FX4400 Quadro cards would probably perform similarly (I haven't seen any benchmarks, but both cards seem to have similar prices). If the Wildcat does have good fillrate, then it would probably be comparable to the 6800 Ultra (although the Quadro cards and the rest of the professional cards have good 2d components, which is something the gaming cards sometimes lack).
-D'oh!