Regarding TNT cards, I am not aware of any drivers that add
functionality to AutoCAD. TNT's are fairly fast at 2d, and for general
AutoCAD they are good cards.
If you want to add 3d rendering functionality (shaded spins, etc) then
you want a Permedia2 card. Elsa's PowerView and Accelgraphics'
Accelview are AutoCAD add-on drivers that allow for interactive
manipulation of 3d models using hardware acceleration for their
Permedia2-based cards. I find this to be a valuable tool, and I'm not
aware of any such TNT drivers, despite the strong 3d features of the
If I'm wrong and there ARE AutoCAD drivers for the TNT, they I'd really
like to hear about experiences with them.
I am a fan of Permedia2 cards (obvious by now), and their drivers are
as stable as they get. TNT's drivers are very good, but they are newer,
and likewise are not quite as tight. It can also be said that the TNT
has better drivers in 95/98 than in NT, and the Permedia2 has better
drivers in NT than in 95/98.
> I would go ahead and buy it. At my work we are running 3 CAD machines with
> the Viper V550 and 2 with the Viper V330 and we haven't had any problems at
> all with them. My guess is that who ever told you that, has a problem with
> their PC. We are running on both Win95 and Win98. I know both those
> platforms are very stable with the Viper V550 and V330 in the Autocad R14
> environment. I don't know how it runs on an NT system. I hope that helps you