Unfortunately it really doesn't man. I know guys that can bench as much as Brute who couldn't knock out a featherweight. I've trained a couple guys that were way stronger than myself, whom had the most difficult time simply learning how to hit. They could press insane weight, but I could take their punches all day.
On the flip side, I know many smaller dudes, with unimpressive benches, that can deliver devastating blows that are not only powerful, but fast and accurate.
Of course, once those stronger types do learn how to hit, they are a serious threat.