You should link your mobos in question xD But I think I found them aannnnnd,
I believe they are basically exactly the same. But from what I've read the sabertooth has a little bit better of a heatsink, however that's just opinion, the person who said that did not have any solid facts.
Apparently it's basically down to which paint job you like better. http://www.techpowerup.com/forums/showthread.php?t=166644