geekapproved said it all. Just verifying!
I would definitely go Intel if you're gaming. Even though it costs a bit more, the performance is really worth it. Also, the GPU needs to fit inside the case. Check how far it can extend in order to fit in your case... just measure it. It's like CPU cooler clearance except that CPU cooler clearance is in the "z" axis, while GPU clearance is on the "x" axis (if you look at your case from straight on the side)