I was looking at some benchmarks and some unboxings of the Sapphire Radeon R9 270X Toxic OC edition GPU. And I then noticed in one of the videos that he mentioned that this GPU supports UEFI bios? What is this? Do I need it to run this card?
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It supports both legacy and UEFI BIOS meaning if your computer has an older legacy BIOS or a newer graphical UEFI BIOS then this video card will work on either one.
"There is also a Dual UEFI BIOS switch which can be activated in the event of incompatibilities with a non UEFI motherboard."