http://www.xlr8yourmac.com/Graphics/GeForce3.html The software has to be written to take advantage of this cards features. Carrara isn't optimized for OpenGL as it has its own proprietery render engin. The card had some problems with lightwave but apparently has been fixed with newer drivers. Maya seems to have optimized their app to use this card under OpenGL. No doudt though, it mainly would help to do faster screen redraws & not the "final" render. That can make a big difference in your workflow if you constantly do area renders for testing.