From what I have read, the Asus has a 3:4 CPU/memory ratio as well as a 4:5 and 1:1 ratios. The Gigabyte only has the 4:5 and 1:1 ratios, so between the two, you would get more out of your memory with the Asus. I have an Epox 4G4A+ (I love this board) and I get the same performance running at 2.8 GHz with the 3:4 ratio as I do running 2.9 GHz with the 4:5 ratio (using SPD timings for both). The 3:4 is a great feature in my book!