The bottom line is that Intel CPUs are much better than AMDs in gaming, if you want to achieve the maximum FPS in games. Yes try to sell your stuff and get the mentioned above, then you'll need to get a new GPU.
Or if you don't care about a punch of FPS more with Intel CPUs just stick with your current CPU it's great anyway and get the high end graphics.
The difference between intel CPUs and AMD's shown below, only in CPU Intensive Games
Only SKyrim, WOW benefit too much from a high end CPU.