Socket AM2 Forward Compatible With AM3 CPUs

The most recent AMD roadmap is also very clear to state AM3 “supports either DDR2 SDRAM or DDR3 SDRAM, but not on the same motherboard.” This is great news for upgraders, as there is a very clear upgrade path: CPU, motherboard, and then memory. This also infers that AM3 CPUs will have both DDR2 and DDR3 support on the integrated memory controller. DDR3, like DDR2, has 240-pin, but the two formats are not pin-compatible.

It apears that the biggst change will be the HT3.0, but other than that it will be quite similar to AM2. There are also no immediate plans to base AM3 on the LGA socket, which would have been nice.