well damn BF4
Did you not play Battlefield 3?Gigabit switch over cat6 running a LAN game no doubt.
Lets see it run online over a wireless in house wifi connection. With players all around the world. It will LAG like a motherfukker im sure.
Especially if there's no dedicated servers (looking at you PS4)
So far, Battlefield has been the only game that truly looks next gen. Everything else has looked like a higher res version of previous gen games.