Do Llano processors use shared system memory for graphics (i.e. the more memory a system has, the more that can be allocated to graphics), or do they have dedicated internal memory for graphics?
llano benefits from faster memory bus(up to a point). ddr3 1600 mhz is the best speed-performance point for llano.
llano doesn't have internal memory other than cpu cache. they don't have dedicated memory like a gfx card, they share ram with the pc.