Not being blunt, but Asus is the best of them all tbh. It's out of stock so just wait, but the DCU cooling system beats out a lot of the other companies coolers for the 6850. The DCU also is considered a very high Overclocker among VGA card-wise. http://www.techpowerup.com/reviews/ASUS/Radeon_HD_6850_Direct_Cu/31.html
Look at those beast low temps haha.