• AMD : UEFI-Only Support for AMD Radeon™ RX 9000 Series Graphics and Later

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    #2752950

    https://www.amd.com/en/resources/support-articles/faqs/GPU-N4XCSM.html

    ..To fully leverage the benefits of UEFI, only UEFI Mode will be officially supported starting from the AMD RDNA™ 4 generation of graphics cards (Radeon™ RX 9000 Series Graphics and later)…

    * Are the Radeon™ RX 9000 Series restricted to Widows 11 ?

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    • #2752976

      Are the Radeon™ RX 9000 Series restricted to Windows 11 ?

      No, I don’t think so. Even if the new graphics cards can only work in UEFI mode (which requires confirmation), Windows 10 can also boot in pure UEFI mode, and I don’t believe AMD will abandon Windows 10 now, especially given their stated aim of “gaining marketshare” :
      https://www.techpowerup.com/326415/amd-confirms-retreat-from-the-enthusiast-gpu-segment-to-focus-on-gaining-market-share

      But it is certainly possible that these graphics cards won’t work properly if the PC is set to CSM mode, as it seems to be the case that the integrated graphics inside the AMD AM5 CPUs already won’t work with CSM mode :
      https://community.amd.com/t5/pc-processors/am5-igpu-support-with-csm-enabled/td-p/576434

      Count me out if the cards won’t work with CSM as I intend to continue running my (old) systems in CSM mode for the foreseeable future.

      Hope for the best. Prepare for the worst.

      1 user thanked author for this post.
    • #2753015

      I don’t believe AMD will abandon Windows 10

      AMD makes a Windows 11 official requirement mandatory for latest graphics cards

      ..In the new document about UEFI support, AMD has stated that Radeon GPUs 9000 series onwards will officially support only UEFI mode and thus if your system is configured to use legacy BIOS or CSM (compatibility support module), it may not work and could fail to boot...

      The requirement is similar to Windows 11’s which makes UEFI / Secure Boot mandatory and is done to enhance OS security…

      • #2753095

        “AMD makes a Windows 11 official requirement mandatory for latest graphics cards”

        That Neowin article only repeats what AMD is saying : that the RX 9000 series graphics cards will be officially supported only under UEFI mode and may not work properly under CSM mode. UEFI mode is one of the official requirements of Windows 11, but that does not mean the cards will ONLY work with Windows 11.

        Frankly, with Windows 10 users still vastly outnumbering Windows 11 users, I find it unlikely that the new graphics cards will not support Windows 10. How can AMD meaningfully gain marketshare if it decides to abandon Windows 10 users with the new generation of graphics cards?

        Hope for the best. Prepare for the worst.

        2 users thanked author for this post.
    • #2753165

      How can AMD meaningfully gain marketshare if it decides to abandon Windows 10 users

      How can Microsoft abandon hundred of millions Windows 10 users coming October ?

      • #2753181

        How can Microsoft abandon hundred of millions Windows 10 users coming October ?

        Well, you will have to ask Microsoft about that. I don’t know. I would also really want to know why, apart from “official” answers like “You should buy a new computer or upgrade to Windows 11.”.

        With Windows 10 still having a significant worldwide marketshare as of February 2025, 8 months before the end of support (more than 55% according to Statcounter, for comparison, Windows 7 had roughly 30% marketshare in May 2019, 8 months before end of support), IMHO AMD will be really stupid to drop support for Windows 10 at this point, if their objective really is to gain meaningful marketshare from Nvidia.

        https://gs.statcounter.com/windows-version-market-share/desktop/worldwide
        https://gs.statcounter.com/windows-version-market-share/desktop/worldwide/2019

        The last AMD graphics drivers that support Windows 7 (22.6.1) were released in mid-2022, more than 2 years after the end of support of Windows 7 (disregarding the ESU). I believe AMD (and probably Nvidia as well) will continue to provide new drivers for Windows 10 for at least 2-3 years after October 2025, like what it did for Windows 7.

        Hope for the best. Prepare for the worst.

        1 user thanked author for this post.
    • #2754354

      AMD has released drivers for the RX 9070 / RX 9070 XT (25.3.1) which support Windows 10 and Windows 11.

      As expected, AMD will continue to support Windows 10 as well as Windows 11 for the new RDNA4 graphics cards, at least for now.

      Hope for the best. Prepare for the worst.

      1 user thanked author for this post.
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