I got a Powercolor R9 270 and I can't find how to know if it have an UEFI bios. Even powercolor"s site don't seem to care. Any idea how to check this? Right now the system have not been put toghter yet so I can't test anytihng... Thanks!
Well my motherboard specify that I must install a compatible gpu to enable ultra fast boot. Sapphire have a switch on some of their cards to enable legacy/uefi bios to improve compatibility with older bios and newer uefi.
Anyway, Powercolor answered my question and confirmed that their r9 270 is "uefi ready"