I get 70 fps average on singleplayer, switching over to multiplayer I get 110-120 fps most of the time.
The graph shows a 270x getting 35 fps on singleplayer which doesn't mean anything, BF4 is a multiplayer game
Also a 760 will easily get 50+ on 1080p in BF4.
There is nothing wrong with AIO's, they perform good and take less space & make the build look better.