This might seem like a straightforward question with a straightforward answer but I need to ask it anyway, I built a computer for a friend and he does Solely AutoCAD, and maybe infrequently SolidWorks I think. he currently has an HD6870 but I recently got an FX4600 as a gift and wanted to know if the 4600 would better suit my friend, I heard AutoCAD runs fine on gaming cards but wanted to make sure we were both using our cards to their fullest ability.