You can overclock the cpu without raising the ram speed using the built in board ratios. Benchmarks don't support high end ram, but they may benefit extreme overclocking. In most applications, you can't tell the difference. Intel recommends 1333 ram for most of it's newer cpus, and one poster had his Intel warranty invalidated by Intel for using the wrong ram on his old 1366 board. I recommend running two ram slots with a 2x8 gb kit of either 1333 or 1600 ddr3; newegg has one of these kits for patriot gamers for only $50 after rebate in todays email promo.