3dfx Voodoo 2 --> Lewpy's Glide plugin (could crash with certain drivers)
3dfx Voodoo 3 --> Pete's D3D (DirectX 7) or Lewpy's Glide plugin
3dfx Voodoo 4/5 --> Pete's D3D (DirectX 7) or Lewpy's Glide plugin
ATI Radeon --> Pete's OpenGL plugin
ATI Rage 128/Expert --> Pete's D3D (DirectX 7) plugin
nVidia GeForce 1/2 --> Pete's OpenGL plugin
nVidia TNT/TNT2 --> Pete's OpenGL plugin
Matrox G200/G400 --> Pete's D3D (DirectX 6) plugin
... the rest --> Pete's D3D (DirectX 7) plugin
yo con la 6800 gt uso el que indica en la lista nVidia GeForce 1/2 --> Pete's OpenGL plugin pero vamos si te da problemas --> Pete's D3D (DirectX 7) plugin
pongo otro que tb me funciona bien > Pete's OGL2 for Geforce FX and higher, Radeon 9500 and higher
saludos y espero que te sirva de ayuda.