i think i know what it is but im not sure, the core 2 extreme QX6850 is a quad-core? i think thats what the Q stands for. because core 2 quad is Q6600, at least thats what im trying to choose between for my cpu. i know the extreme is better but not if its not quad-core. so does any one know for sure? ive searched google and i get quad-core sometimes and i get dual-core other times for the extreme QX6850.