There are 4GB DDR2 sticks. Too pricey tho. The mhz makes no real difference in performance, but the amount possibly could, tho I don't know anyone that could benefit from 16GB of ram that is using an AM3 chip in an AM2+ board. That has to be one of the smallest niches out there. If they don't benefit from 16GB of ram, there is no point in upgrading. So, instead of AMD worrying about this small niche, what could they have done to make Dozer or it's platform any better? No matter how many scenarios I come up with, I just see no point in keeping AM3 support on the new platform. I just don't think there is really anyone out there that will see a real performance benefit from using an AM3 cpu on a dozer board, even if they only currently have DDR2. I just don't buy it.