I added 1080p for the reason you got replied to on... A 1070 is going to have a lot easier time doing 1080p at frame rates way over 60 than it would at 1440 or 4K with the same or similar settings and 100+FPS (if it manages to make it that high even) at 1080p with a 2500K even at 4.5GHz is going to have trouble with really high frame rates with a lot of newer games than a more modern i5 or especially i7 would. Seeing as who I was replying to has a 144Hz G-sync monitor they obviously wants to get the most out of it so the 2500K is pretty much ready for retirement.
I also have a 2500k at 4.5GHz and a 144Hz monitor but I'm still holding out longer.
Ah, I misread. Okay, that works.