I think a 7850 is a perfect match for an Ivy i3. Most games run on 2 main threads anyway, so 3.5GHz is going to be more than enough for those. The ones that use more often do not put a whole lot of stress on the other 2 cores so it's still really tough to fine a game in which there is anywhere near a linear performance scaling relationship between the # of CPU cores and % peformance difference.