The system specifications for BF4 will not be too different from BF4. Especially with your RAM and CPU it depends a little bit on your resolution, tweaks and for what kind of framerate you are aiming for. But as the other guys said, I am pretty sure you will be able to run the game. It can be always a good catch to get some additional laptop RAM, especially for Asus laptops it is not too expensive and if you are feeling not good installing it by yourself, the most PC shops will install it after you bought the RAM there.
Cheers
Basti
