I have been running a i5 2500k since sandy bridge first came out. I was able to get a stable overclock of 4.7ghz but I left it at stock speeds all these years. I currently have a GeForce 980 and 16 gigs of ddr3. Overall it works great still. Recently I got a slightly used i7 3770 for free. I have thought about swapping out my 2500k with the 3770, but I am not sure if it is worth the trouble. I might just overclock the 2500k until I buy a whole new motherboard/cpu setup probably this summer when I have the money. Any thoughts?