3dvision is only working with 1080p screens, thus you have to use 3 screens in 1080p to get the highest 3d set.

i'm not sure, but i think you can buy 4k models and use them all together

Hi, I've just ran into your post deusex. It is possible to play with that display setup, the native tri-display resolution would be 7680x1600 pixels, which means that you would need a second GTX 690 to play the games decently, so a quad SLI is a must in these extreme resolution setups, or a triple GTX 780 as you said, or even these new 780 Ti's, or simply be patient till April and then grab two Maxwells 🙂