I guess you're seemingly unaware that the ONLY card AMD has with a 384bit membus that's anywhere remotely close to 1000Mhz+ is the 7970. I'm done trying to prove you wrong, it's not worth it.
Your initial statements were way off, and they still are. AMD supports current 7990s via crossfire profiles. They're making their own 7990. If you want to be oblivious and grasp at straws, have at it.