Honestly I personally don't really care if a game is 64 bit or 32 bit. I see a 32 bit as a good way for me to multitask. At least I know that the remaining ram can be used to run other programs instead gobling up all of remaining ram, whatever I am not using. I think these days it is all about the graphics card, Since graphics cards has like a max of 2 gb unless you go insane on your graphics card with 7gb of ram, 4gb is pretty sufficient, remember graphics cards pump out numbers and ram does logic.