Unlock disabled Radeon RX 460 cores with modded BIOS

Discussion in 'BIOS Mods' started by Katzenfreund, Dec 15, 2016.

  1. Katzenfreund

    Katzenfreund MDL Expert

    Jul 15, 2016
    Dec 9, 2016

    It appears that it is possible to unlock hidden potential with select versions of AMD’s Radeon RX 460 video card.

    Overclocking.guide is reporting that a simple firmware update for the Radeon RX 460 can unlock additional stream processors and TMUs that AMD disabled at the factory. The RX 480 ships with 896 SPUs and 56 TMUs but fully unlocked, those figures bump up to 1,024 shaders and 64 TMUs (a gain of 128 shaders and eight TMUs for those keeping count).

    Multiple sites are having success with test cards on their end although as of writing, Overclocking.guide only has modded BIOS for the Sapphire Nitro 4G and the ASUS STRIX O4G cards. They’re working to test additional cards but for now, that’s all that’s available.

    It is said that the mod can result in performance gains of up to 12.5 percent in certain games.

    Those interested in trying out the mod are first encouraged to back up their existing BIOS. From there, you’ll need to run the “flash unlocked bios.bat” file as part of the Asus or Sapphire modded BIOS download from Overclocking.guide, wait for it to complete then reboot your system as instructed.

    A word of warning: tinkering with the BIOS can easily result in a bricked card. Consequently, proceed with due caution

    Of course, there’s a reason AMD disabled portions of the card although that reason could be one of many that may or may not have a negative impact on the card now or in the long-term. TechPowerUp only noticed an increase in peak power consumption of about four watts with an unlocked card meaning (at least in their case), increased heat shouldn’t be a major concern.