qx6700 at 2.66ghz, i have good overclockable buffalo ddr2 800 2 gig dual channel. Everything else at stock including cpu, now i can either do 800 unlinked at 4-4-4-12 or linked ddr 667 at 3-3-3-12. Even 800 at 3-3-3-8 works, but is there any difference in game fps between 800mhz or 667mhz in games like unreal 3, team fortress 2 etc.