GIGABYTE has released a number of X58 based motherboards since the chipset made its appearance in 2008. While they don't have the most X58 boards out there, they do offer some of the best. GIGABYTE first released the GA-X58A-UD3R (Rev. 1.0) not too long ago and it was well received with it's low price and excellent performance. Recently however, GIGABYTE saw fit to release a revision to the GA-X58A-UD3R (Rev. 2.0) adding some minor changes. Just looking at the board and box will more or less leave you hanging as far as what the differences are...