So, I'm planning on replacing my AMD Radeon 7700 with a GTX 980ti. However, my CPU is an AMD FX-6300 so obviously there will be a bottleneck there. The problem is that I want to get an i5-4690k but my motherboard only supports AMD CPU's. I was thinking about changing my motherboard but this ended up being way to expensive. Is there just a clean swap I can do to my CPU which will ensure that I won't bottleneck my GTX 980ti? I'd rather not go over £700. Thank you!