The 760 can do a lot of thing - and actually barely max out bf4 while maintaining acceptable FPS. Not always over 60fps, and i would recommend not using MSAA for the best performance. Otherwise, lowering the settings a little bit(especially the shadows) wouldnt hurt.
If ultra preset - 40-60fps. If you turn down the MSAA, you would probably gain 10-15fps(its a killer i tell you) from 50-75.
The CPU will not bottleneck the graphics card, so i would say go for it.
Also - included with Nvidia/geforce cards, the software: Geforce Experience, amazing software, been using it myself. It optimises game settings to find the sweetspot between FPS and quality. Highly recommend it. You can even control it and say - I want more quality at the sacrifice of lower fps - And it will do it. Also - it can update your drivers.