Hi folks, I know there's a number of closely related threads already out there, but let's see what everyone thinks about my particular situation. I have Asus Z97-A mobo with i5 4690K and dual Asus Strix GTX 970 SLI. I'm hoping to start doing some 4K gaming. Right now, I'm falling a little bit short of getting a solid 60 fps with most games on high-ish settings. So, I'm wondering whether upgrading the CPU to, let's say, i7 4790 might get me any extra fps at 4K, and if so, what kind of improvement might I expect.