I hate AMD cards. I've hated their linux support since I had the misfortune of owning an All-In-Wonder Radeon. I even refused to buy them around 2003, when I had too much abuse from ATI to keep using their hardware.
I just (today) made a purchase of a VM server off newegg, using all AMD hardware for hardware passthrough[0], because of how truly poor NVIDIA is in this regard.