I think us 120Hz users would disagree with that. Ever since I brought this stupid monitor I being trying to keep up with the latest and greatest.
Just got a 780 and I think I'll be buying another just to get BF4 to run @ 120FPS constant.
dont need 120fps to+ utilize the benefit of a 120hz screen.
and yes you need 2x cards for those 120fps minimum numbers.
However I would sell the 780 and just get 2x290x
and nvidia feels the pressure of 290 series,
http://videocardz.com/46955/nvidia-announces-geforce-gtx-780-ti