Nice build but you are seriously gimping yourself with a 1080p monitor. I have the same gpu and cpu in my build and I crush games in 1440p at 60fps or higher effortlessly. You can even do 4k if you don't mind a drop in frame rate.
Uh, I don't think you actually understand the differences in how amd and Intel processors work if you think more cores = better. Because that is not the case at all, try doing some research
So let me get this straight, you bought a GTX 1080 for $69? How in the hell?