If CM can't knock out Floyd, I can't seeing him winning by "out boxing" Floyd. I think Conor will be able to land, put his percentage will be low like every person to ever fight Floyd. Floyd's defensive style is probably one of the best in boxing history, and he doesn't take many chances so you don't get many openings against him. He's really quick, and good at manipulating space and angles so you never get a clean shot.
Dana White (who's a f'ing tool) did bring up a good point. Floyd, who's a "traditional" boxer, is use to boxers coming after his face and his abdomen. Conor is an MMA fighter, and will go for shots at all parts of the body and arms, and all parts of the head. It could be weird for Floyd to have to defend shots to the front of his shoulders (clavicle area which hurt like heck if someone punches you there) and could create openings to his head. Floyd has to be prepared to defend everything from the waste up, but Conor has been doing that for years.
It's going to be interesting fight. I can see Floyd toying with Conor and f'ing up his face from the multitude of shots he going to get in, but I can also see Floyd getting caught and sleeping. Connor definitely has knockout power, and they both agreed to 8 oz gloves which favors Connor more IMO.