Radeon R7870 Hawk
Great card; I upvoted you....
But two cheap 7770`s (SLi) would still beat it in the numbers game. One of my PC`s runs BF4 great in Ultra (no post processing) via an i5 Haswell and the two 7770 I am not selling now. BF4 and Drivers being upgraded and updated to run it even better now
But I would recommend at least a 2Gb card now. If the poster has not bought a card yet he was a dreamer.