People... be wary before you jump into the discussion of which video card is best for 3DS Max... if you have no experience in optimizing for it... are you aware of...
Nividia's problemed, crippled down drivers? it seems that while the GTX4xx series are powerhorses for gaming (and they are FERMI to boot) - their drivers are crippled when used in some workstation applications, such as 3DS.
in fact, it is so bad that gt9800 1 gig cards outoperform them. significantly.
"I can confirm that the new 400 series cards from Autodesk DO NOT play nicely with 3DSMax or other pro-level 3d graphics applications. Word from Nvidia is because these cards are targetted at gamers, and that they will not be addressing these issues. Should you want improved performance to match that of their previous generations of cards, you will now have to get a Quadro based card. My new GTX 470 cards performs slightly worse than my old 6800 GT, and about 1/4 of the speed of my old 8800 GTX. I used the BMark4 test scene and these were my results. Both tests were run at 1920x1200 with the Direct3D renderer."
Toms also did a article on the crippling here, a year ago when the 280 was contemplated as a "workstation" card: