4 Replies Latest reply on Jul 9, 2016 8:28 AM by waltc

    PCPer Power Testing of Crimson 16.7.1 with RX 480

    black_zion

      AMD Radeon RX 480 Power Consumption Concerns Fixed with 16.7.1 Driver | PC Perspective

       

      Shifts some PCIe slot power draw to PCIe 6-pin, no performance hindrance, Compatibility Mode "awful" name choice (but it slaughters the watts nonetheless).

       

      The "worst case scenario"

      Metro: Last Light (4K)

      16.6.216.7.116.7.1 (Compat ON)
      MB Slot (PEG) Power79 W71 W67 W
      MB Slot (PEG) Current6.8 A6.2 A5.7 A
      6-pin Power81 W91 W85 W
      6-pin Current6.6 A7.7 A7.3 A

       

      One wonders why they chose the term "compatibility mode" instead of "efficiency mode"...

        • Re: PCPer Power Testing of Crimson 16.7.1 with RX 480
          jamesxx

          Because older motherboards will still get damage or emergency shut down PC without it.

           

          Newer standard assumes 5.5A max so it still fails it without Comp. mode (and with it too) by over 13% while older motherboards got aged or even have 4.4A max if very old. And some motherboard were meant to be budget-class.

          • Re: PCPer Power Testing of Crimson 16.7.1 with RX 480
            abi

            Everybody knows that motherboards have multi-card compability, people can place top sound cards, multi-gpu, etc all togheter and 90w is nothing. People also know that since the beginig of pc gaming, there are cards that fully take power from pci-e slot, how many gtx960s are out there OC?

             

            But still, its AMD fault for all this situation, AMD should have predicted all the hate, and simply made 8pins reference cards...

              • Re: PCPer Power Testing of Crimson 16.7.1 with RX 480
                waltc

                How can anyone predict the level of stupidity from a complaint like this?...;)  It's literally too stupid for words.  There is no PCIex16 motherboard that will suffer damage from this card.  As usual, people with tiny amounts of knowledge comment ignorantly on universal issues they don't even understand:  "But, it is supposed to do this but instead we find that it does that and so the sky is falling!" 

                abi wrote:

                 

                Everybody knows that motherboards have multi-card compability, people can place top sound cards, multi-gpu, etc all togheter and 90w is nothing. People also know that since the beginig of pc gaming, there are cards that fully take power from pci-e slot, how many gtx960s are out there OC?

                 

                But still, its AMD fault for all this situation, AMD should have predicted all the hate, and simply made 8pins reference cards...

              • Re: PCPer Power Testing of Crimson 16.7.1 with RX 480
                theacclaimed

                Compatibility mode is named in reference to the PCI-SIG compliance. In this mode, the system is "compatible" with the industry standard.

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