I currently have a 256 mb stick of pc2700(ddr333) and was just given a 256 mb stick of pc2100(ddr266). My question is what will yeild more performance. the 256 mb of ram running at 333 mhz or 512 mb of ram running at 266. I use my computer mostly for games. I'm guessing the 512 at 266 but I could be wrong.