The G1 and G3 series are really bargin burners. When I bult my parents computer; I thought to myself $100+ for an I3 or $35 for G pentinum. Was a no brainer. I know you are spucing these up overclocking a bit but the point remains the same. The only reason I would consider an I5+ is for heavy gaming or compute bound tasks as long as the G has the necessary features you require some of which include (appropriate hd engine for your monitor, virtualization, hardware decoding, ....). I forget exactlywhere they draw the line between pentinum and celeron but i know some of the lower end processors lack certain hardware features a few select people require.