All the sites (except Anandtech) which reviewed motherboards for Sandy Bridge says that new Gigabyte motherboards with x67 chipset don't support UEFI but just EFI boot.
But Anandtech
says in review of P67A-UD4 that it has EFI (UEFI) already implemented:
Gigabyte’s dual BIOS system is on this board. Yes, that is right – BIOS. No UEFI here. Well, that's not strictly true, as one of the latest BIOS updates at the time of writing (F6) implements an EFI into the BIOS, reportedly allowing bootable access to hard drives over 2.2TB. This is due to, as Gigabyte explained, that their board is actually UEFI, but without a proper GUI interface like other boards. They've used the old BIOS-style interface for now, as after years of plugging away they believe it's quick, stable and recognisable for consumers to understand. So underneath, it's truly 64-bit, meaning 2.2TB+ partition support is possible, and could also suggest that a new GUI is coming in the future. I asked about time-scale for this, but Gigabyte were undoubtedly tight-lipped about dates and implementations.
So, does it mean that Gigabytes' motherboards which support EFI boot and drives over 2 TB, have full EFI support except graphical user interface? Or is UEFI just partially implemented?
Why Gigabyte everywhere says that it will support UEFI later? Do they mean just "we will add graphical interface later"?