http://www.amazon.com/Gigabyte-GDDR5...&keywords=280x

this card is pretty beastly, its a rebranded 7970 card which i own, i have a similar system minus the card you own, and i dont drop below 60 fps in any instanced content, and the settings are quite high

also in regards to BF4 which i also own, when it comes to 64 player conquest, will all settings on high at 1080p, with texture on ultra, i dont drop below 60 fps in game action, single player goes meh, you can prob stretch on all ultra if you can deal with dips below 60 fps, but thats unacceptable to me personally