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Radeon Gallium3D Performance Gets Close To Catalyst On Ubuntu 14.04

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  • #16
    Originally posted by ObiWan View Post
    But AMDs opengl stack is only about 80% of their direct3d performance.
    It's depend on how renderer is implemented - which OpenGL features are used. It's not hard to write faster OpenGL renderer than Direct3D, I can say even that with OpenGL you are able to prepare renderer with very low CPU overhead like with Mantle. It's not AMD fault that many developres still use old OpenGL 2.1 features (Shader Model 3.0 era). With OpenGL 4.x features this API is like a beast, CPU overhead is really low

    You can try to check independent OpenGL tech demos or write code myself and next compare results on Windows and Linux. In those tests you will see that performance on Windows is mostly the same as on Linux.

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    • #17
      Performance is close (if we accept that ~20% is not HUGE diefferrence).. What about quality??

      I would prefer 50% of Catalyst performance with equal (in-game) quality, than 100% Catalyst performance with artifacts in most of the (Steam) games.

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      • #18
        Originally posted by verde View Post
        Performance is close (if we accept that ~20% is not HUGE diefferrence).. What about quality??

        I would prefer 50% of Catalyst performance with equal (in-game) quality, than 100% Catalyst performance with artifacts in most of the (Steam) games.
        Rendering issues are becoming rarer and rarer. Most games can be run -- OpenGL 3.3 with some 4.x features. Anti-aliasing (MSAA) and anisotropic filtering are supported -- use them.

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        • #19
          Originally posted by Calinou View Post
          Rendering issues are becoming rarer and rarer. Most games can be run -- OpenGL 3.3 with some 4.x features. Anti-aliasing (MSAA) and anisotropic filtering are supported -- use them.
          Sure. If it starts at all.
          Catalyst 14.1 isn't even able to play videos without crashing X. Setting render method to opengl helps but this doesn't rise the quality.

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          • #20
            Originally posted by Kemosabe View Post
            Sure. If it starts at all.
            Catalyst 14.1 isn't even able to play videos without crashing X. Setting render method to opengl helps but this doesn't rise the quality.
            Catalyst have serious lag after 30 hours of use..., radeon r600 can't play flash with vdpau , is totally broken, and I have random freeze with google chrome if I use gpu aceleration.

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            • #21
              Originally posted by pandev92 View Post
              radeon r600 can't play flash with vdpau , is totally broken, and I have random freeze with google chrome if I use gpu aceleration.
              That should work with Firefox and the older Flash release at least.

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              • #22
                It's a bit off-topic.

                If today, I want to get a computer and use Open Source video drivers, what would be my best bet?
                I need flawless desktop experience (dual screen, KMS, etc...) and light gaming. I'm coding most of the time, but I may fire steam once in a while.

                I'm used to intel drivers, which work great. Would HD5200 be any good?

                I like the Nvidia 750 Ti, is there any chance that nouveau will make use of its potential in a relatively close future?

                AMD Radeon seems the way to go to get the best performances with OS drivers yet, but how is "desktop" support?

                Thanks.

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                • #23
                  Originally posted by AnonymousCoward View Post
                  That should work with Firefox and the older Flash release at least.
                  firefox + flash 11.2 = flash crash and firefox freeze

                  chromium + flash 11.2 = flash crash


                  if I use vdpau with my apu a8 5600k ;(, doesn't work.

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                  • #24
                    Originally posted by mmstick View Post
                    honestly, nvidia performance on linux doesn't look that great at all either. I've never seen a benchmark that made nvidia cards look good -- they all look disappointing to me in comparison to windows drivers. There's extremely uneven levels of performance with different models -- most of which run much slower than they should be.

                    loooooooooooooooooool

                    Comment


                    • #25
                      Originally posted by bokal View Post
                      It's a bit off-topic.

                      If today, I want to get a computer and use Open Source video drivers, what would be my best bet?
                      I need flawless desktop experience (dual screen, KMS, etc...) and light gaming. I'm coding most of the time, but I may fire steam once in a while.

                      I'm used to intel drivers, which work great. Would HD5200 be any good?

                      I like the Nvidia 750 Ti, is there any chance that nouveau will make use of its potential in a relatively close future?

                      AMD Radeon seems the way to go to get the best performances with OS drivers yet, but how is "desktop" support?

                      Thanks.
                      Intel IGP will do fine -- the recent ones can use up to 3 screens. On a desktop, you probably won't be able to get better than a HD 4600 except if you go for some special, small-form factor machines.

                      Originally posted by Kemosabe View Post
                      Sure. If it starts at all.
                      Catalyst 14.1 isn't even able to play videos without crashing X. Setting render method to opengl helps but this doesn't rise the quality.
                      Originally posted by pandev92 View Post
                      Catalyst have serious lag after 30 hours of use..., radeon r600 can't play flash with vdpau , is totally broken, and I have random freeze with google chrome if I use gpu aceleration.
                      I was not talking about Catalyst (rolling eyes don't fix problems, too).

                      Comment


                      • #26
                        Originally posted by bokal View Post
                        It's a bit off-topic.

                        If today, I want to get a computer and use Open Source video drivers, what would be my best bet?
                        I need flawless desktop experience (dual screen, KMS, etc...) and light gaming. I'm coding most of the time, but I may fire steam once in a while.

                        I'm used to intel drivers, which work great. Would HD5200 be any good?

                        I like the Nvidia 750 Ti, is there any chance that nouveau will make use of its potential in a relatively close future?

                        AMD Radeon seems the way to go to get the best performances with OS drivers yet, but how is "desktop" support?

                        Thanks.
                        I can recommend pre-gcn radeon cards completely. I was totally happy with my Trinity (A10-5800k) until i bought Kaveri (yeah i knew it before :-P). Richland will do fine.
                        Personally i don't want to support Intel. We need a vital market - we need AMD.

                        Comment


                        • #27
                          Nice article comparing AMD Linux OSS driver's performance to their Catalyst drivers. I've been waiting for an article like this so that I could shit up a forum talking about Nvidia and Windows and Flash acceleration and shit.

                          Gentlemen, please.

                          Comment


                          • #28
                            Originally posted by phoronix View Post
                            Phoronix: Radeon Gallium3D Performance Gets Close To Catalyst On Ubuntu 14.04

                            With the open-source graphics driver stack found in the forthcoming release of Ubuntu 14.04 LTS (Mesa 10.1 + Linux 3.13), the performance of the community-developed Radeon Gallium3D driver is now close to that of the official AMD Catalyst driver for recent generations of Radeon graphics cards. In several OpenGL tests the "RadeonSI" driver can even run 80% the speed of AMD's official Catalyst Linux driver.

                            http://www.phoronix.com/vr.php?view=19950
                            These are really, really good results. We shouldn't forget that 5 years ago, we were excited about drawing a triangle and immediately locking up on current hardware. Now the latest and greatest runs at almost the blob speed for common games, and at about 60-80% on the most challenging OpenGL workloads.

                            The only missing piece of the puzzle is OpenCL support, does anyone know how that is doing?

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                            • #29
                              Originally posted by Calinou View Post
                              Rendering issues are becoming rarer and rarer. Most games can be run -- OpenGL 3.3 with some 4.x features. Anti-aliasing (MSAA) and anisotropic filtering are supported -- use them.
                              You think.. Look at this: https://bugs.freedesktop.org/show_bug.cgi?id=73739

                              Comment


                              • #30
                                Originally posted by verde View Post
                                ....the bug is close useless without an apitrace.

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