About a year ago I got my first gaming PC. At the time I had a very low budget so my PC isn't very future proof. So recently I've starting playing the Battlefield 4 beta and it's unplayable on Ultra and just bearable on High and this got me thinking about being able to play next gen games. My current GPU is a AMD Radeon HD 7770 and my CPU is a AMD FX 4100, I know it isn't a very good CPU, so my question is should I just upgrade my CPU and leave my GPU the same or does it need to be swapped out as well? I would like to be able to play Next-Gen games on highest settings.