I currently have an i7-7700 but am in need of a new motherboard. I've found a decent deal for a motherboard/i5-9400f combo that would cost me an extra $80 over a motherboard for the i7-7700. Is it worth it to spend a little extra and go with the new cpu or keep what I have and just replace my motherboard? I'm running a gtx 1070 and use the computer primarily for gaming. I plan to buy new ram as well regardless which direction I go.