Help on upgrading a CPU (and a bit on motherboards)

Fleron

Honorable
Sep 9, 2014
25
0
10,530
Hey guys, quick question, I'm upgrading my "intel i5 650 2 core, 3.2GHz" processor into an i5 4670k or something. The question is though, is my motherboard compatible with my motherboard?
I have a; Gigabyte, H55M-UD2H motherboard.

By the way, would it be a noticable upgrade, like how noticable?
Any other suggestions on other processors or a nice cheap motherboard if it's not compatible?

Thanks in advance.