AMD Radeon RX 480 power issues fixed in new 16.7.1 drivers

By Scorpus ยท 14 replies
Jul 7, 2016
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  1. Last week there were widespread reports that the AMD Radeon RX 480, the company's new Polaris-based graphics card, suffered from power draw issues. Specifically, the card would draw more power from the PCIe graphics slot than the specificiation allows, which could cause damage to motherboard components down the track.

    As promised, AMD has released a driver update to address the problem. Radeon Software Crimson Edition 16.7.1 is now available, and offers two solutions to the RX 480's power draw: either shift the excess power draw to the PCIe power connector, or limit the total power consumption of the card.

    AMD's primary solution is to shift the power draw to the 6-pin connector, although this does cause the connector to draw more power than its specification allows. However, unlike with the graphics slot on most motherboards, power supplies tend to be very tolerant of PCIe power connectors drawing more power than typically allowed.

    There is also a 'compatibility mode' toggle available within Radeon Settings that limits the RX 480's power consumption so that neither the graphics slot nor the 6-pin connector draw more power than is allowed. This does have a small effect on performance, however in AnandTech's testing they found the performance hit was low enough to be within the margin of error for their benchmarks.

    The 16.7.1 drivers include small performance boosts up to 3% for some games running on Polaris cards, and there are a collection of other bug fixes that have also been implemented.

    As always, you can download the latest Radeon Software Crimson Edition drivers through Radeon Settings automatically, or you can download a manual installer from our driver download section here. Owners of RX 480 cards in particular should update their drivers to this version as soon as possible.

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    Last edited by a moderator: Jul 8, 2016
  2. amstech

    amstech IT Overlord Posts: 1,936   +1,102

    Always nice to hear about bug fixes.
    Nice work AMD.
  3. darkzelda

    darkzelda TS Evangelist Posts: 321   +121

    I just read the article over at Tom's Hardware and they actually solve the problem without penalties on performance. A really rapid and good solution by AMD. I really want to see the custom cards and their performance compared to the reference card.
  4. Evernessince

    Evernessince TS Evangelist Posts: 2,587   +1,708

    I was expecting a performance drop. I'm sure the AMD engineers just want to get some rest over that long weekend they pulled.
    jauffins and Puiu like this.
  5. Darth Shiv

    Darth Shiv TS Evangelist Posts: 1,849   +493

    Happy with that resolution. Came quick too so well done AMD there.
    jauffins and Julio Franco like this.
  6. hahahanoobs

    hahahanoobs TS Evangelist Posts: 2,184   +733

    AMD didn't think the power consumption was an issue. Reviewers and gamers did.

    Proof? The "fix" isn't enabled by default. ;)
  7. Puiu

    Puiu TS Evangelist Posts: 2,888   +1,313

    The fix works much better than people ever expected. glad to see that everything was resolved fairly fast.
  8. dreamer2908

    dreamer2908 TS Rookie


    Not quite. The reviewer at TechPowerUp even recommends against the Compatibility Mode.
  9. Fect900

    Fect900 TS Rookie

    I seemed to have performance issues with my Fury X with this driver. Anyone else?
  10. Puiu

    Puiu TS Evangelist Posts: 2,888   +1,313

    try a clean install of the driver.
  11. hahahanoobs

    hahahanoobs TS Evangelist Posts: 2,184   +733

    *sigh* Compatibility Mode came in the driver AFTER the reviews.

    Please read more carefully next time. Thanks.
  12. Puiu

    Puiu TS Evangelist Posts: 2,888   +1,313

    Look for new articles that review this driver and how it affects power draw and performance. (compatibility mode included) AnandTech, which is linked here, and TechPowerUp are a good start.
    You need to read more carefully :D
  13. dreamer2908

    dreamer2908 TS Rookie

    I'm talking about the article: AMD Releases PCI-Express Power Draw Fix, We Tested, Confirmed, Works
    In the last paragraph, if you guys have problems in reading.
  14. hahahanoobs

    hahahanoobs TS Evangelist Posts: 2,184   +733

  15. With an 8-pin power connector

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