Pay the $10 more and get i5 3570k
. You motherboard is good. If you want to get to 4.3 to 4.6 it won't even need a high end cooler. My hyper 212+ with just push keeps me 55-65C well below the 90C limit. I'd expect similar from the 3570k. If you really want to spend the cash Noctua NH-D14
>.> but something like COOLER MASTER Hyper N 520
$34 will do you just fine. Also, don't get an 860 or 920 they aren't worth it.