Probably the original road map had Steamroller for first half 2013, but that changed a while ago and of course would make no sense since pile driver was just released. There will be a second iteration of Pile driver around July 2013 with higher speeds and a .28nm process which should reduce energy consumption. Those will be the last cpus for the AM3+ socket. Steamroller will come in on a new socket and probably DDR4 memory. Use your current memory for the time being.Get a new cpu . the memory speed while somewhat helpful is notas important as the performance improvements the cpu will achieve.