The last DDR3 supporting CPU that we heard of is codenamed Suzuka. Suzuka is Japanese famous formula one race and it should also be a synonym for AMD’s dual / quad cores.
Both dual and quad cores are based on 45 nanometre process and both have 6MB of L3 memory. They support DDR3 non registered memory and the boards for these CPUs will use a desktop socket AM3.
The most important is that this new core will have 1 MB of L2 cache which might improve the performance in some applications.