i dont see the point in this either PG, i use a program called CATIA for my uni course which is a pretty awesome piece of CAD software, all the big car and aeroplane manufacturers use it for designing etc
now i have a copy of this installed on my home PC and this has a middle of the road 7600GS in it which manages fine with all of the models that i'v had to make so i'm not entirely sure what difference you would see if any with that card