which ist faster, a 2x256 (512) of ram whcih runs at 2-2-2-5 or 2x512 (1GB) which runs at 2.5-4-4-8 ? heres the linkeys for the them the 2x256 http://www.newegg.com/Product/Product.asp?...N82E16820144169 the 2x512 http://www.newegg.com/Product/Product.asp?...N82E16820227039