An american friend of my told me that he knows a super super rich friend has an octo core pc but I don't know whether that's true.. Theoretically, if you use an aftermarket motherboard, kinda like the motherboard that AMD uses for their so called quad core (A motherboard with 2 processor slots), you can modify it to hold 2 Intel 775 sockets and stuff in 2 QX6700 and poof! You have an octo core..