GPU Upgrade 760 or R9 270x?

I'm upgrading my GPU and i just need some input from some one that could help me chose my final decision on ether the GTX 760 or the R9 270x. My cpu is the FX-6300 overclocked to 4.5 GHz. and the games i play are BF4, Crysis 3, and arma 3. Thanks.

7950 should be the same price



+1 the 7950 is the best choice in that price,also if you can spend a little more get the 280x or the 7970 since the 280x is pretty much a rebranded 7970

I'd get a 7950 as it can use mantle since you play bf4