I have a 4890 as i'm poor as hell and can't afford a new pc atm lol but, when i play BF4 i get a error about my drivers being outdated, the game still runs perfectly fine but its just annoying as due to this(i'm assuming) when the game loads i have to close Chrome then click the game at the bottom for it to come up, whereas my friends just loads up with his web browser still open.
Now, I've also ran Titanfall on this card and i don't get a single error and the game runs perfectly fine, don't get me wrong my FPS on these games is around 30-40, i find it still perfectly playable.
Due to these drivers giving me problems it kinda lowers my FPS by around 10FPS, i used to have a Geforce 9600GT which ran it better, i would go back to it but all of my other games run better with the Radeon its jsut BF4 and Titanfall that suffer.