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Ryzen 5 2400G Radeon Vega Linux OpenGL/Vulkan Gaming Benchmarks

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  • #71
    Originally posted by dungeon View Post
    Realworld gaming means nothing as usually that is not scenario where max spikes are, they need to more stress - something like running Prime + some GPU benchmark (Unigine Valley let say) at the same time.
    But gaming is the situation where you don't want throttling to occur and need to stay inside TDP limits. Spikes are not a problem in that situation either.

    If the CPU exceeds TDP and throttles during a stress test, nobody will care.

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    • #72
      Originally posted by chithanh View Post
      But gaming is the situation where you don't want throttling to occur and need to stay inside TDP limits. Spikes are not a problem in that situation either.

      If the CPU exceeds TDP and throttles during a stress test, nobody will care.
      If you read the articles on Tom's and Anandtech regarding the APU's physical characteristics, AMD moved from 2 CCX with 1/2 cores of each enabled to a single CCX with all cores enabled, and then slapped the Vega in the place of the 2nd CCX. That basically means that there's significantly higher heat density. That along with the low quailty TIM and shipping the same cooler as other Ryzen 65W parts means that the chip won't reach its best turbo speeds at load.

      Okay that is not "Throttling", but it is reducing performance.

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      • #73
        But as Tomshardware reported, temperatures are totally ok in real-world gaming. Only if you run CPU+GPU stress test, then the processor will drop below its turbo speed.

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        • #74
          Originally posted by debianxfce View Post

          For that a Ryzen APU PC is overkill. An android tv box can do the same and many of them boot to a Linux distribution from a good quality class 10 micro sdcard. I have made Debian testing Xfce for Sunvell T95Z Plus: https://www.youtube.com/watch?v=UsNzZn-luc0
          Most of them can't output 4K @ 60Hz, and Android doesn't' work well with surround sound, so a no go

          I want accelerated video decoding too

          I have no interest whatsoever in running Xfce

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          • #75
            Most interesting would be if 2200G/2400G can decode AV1 with the CPU and GPU (compute units) working together at low latency. It's prematurate to talk about that but the "heterogenous" computing feature would finally be used for something.

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            • #76
              Originally posted by chithanh View Post
              But gaming is the situation where you don't want throttling to occur and need to stay inside TDP limits. Spikes are not a problem in that situation either.

              If the CPU exceeds TDP and throttles during a stress test, nobody will care.
              If this throttling happen, then it could be like on graphics cards like RX480 : lower the voltage, e.g. -0.1V, and get a bit better performance.
              Now, perhaps there's a realistic scenario, if you donate CPU/GPU cycles to grid computing
              Last edited by grok; 02-17-2018, 03:10 PM.

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              • #77
                Originally posted by chithanh View Post

                So for a hypothetical Vega20 APU, either we need DDR4-6000 which doesn't exist yet (only up to DDR4-4600 is currently available in the market), or some kind of fast cache needs to be placed on the package or mobo.
                Or an apu for a ~Threadripper platform w/ quad channel memory?

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                • #78
                  Originally posted by chithanh View Post
                  But as Tomshardware reported, temperatures are totally ok in real-world gaming. Only if you run CPU+GPU stress test, then the processor will drop below its turbo speed.
                  https://www.techspot.com/article/157...ryzen-3-2200g/

                  only a 2200g admittedly, but awesome results w/ a $20 cooler

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                  • #79
                    Originally posted by msroadkill612 View Post

                    Or an apu for a ~Threadripper platform w/ quad channel memory?
                    Something like this was announced years ago but they kept quiet since - like, no need to talk about something that won't be out for a while yet. That'd be two CPU dies, what I may call a "Vega 32" and a HBM2 stack.
                    But it may be an expensive, high end and specific thing. Good if the GPU accessing 128 gigs or 256 gigs would be useful, or especially if the weakest link in your workload is that between CPU and GPU.

                    tl;dr expect an APU on a quad channel platform, but it may be a very expensive professional thing. Thousands of dollars.
                    For games, a dual channel Ryzen and an RX570 etc. will be muuuch cheaper (and perhaps faster)
                    Last edited by grok; 02-25-2018, 04:22 PM.

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                    • #80
                      Originally posted by dungeon View Post

                      Now imagine we have only one Linux and one version of Linux to support, that one and only Linux is also up to date,etc... they will package that right away - but on Linux there is 300 distros and probably 300K different combinations In our world, one bug easely could be seen as 100 bugs, etc...
                      Conversely though, once the radically new gen hardware teething problems are sorted, what a wonderfully stable and pervasive ecosystem to tweak distros for - zen, vega, Fabric - from a single AMD source and covering all price points and market segments an enterprise needs.

                      Beyond the short term pain, amdS modular strategy sounds a good fit for Linux vs countless variations of intel/amd/nvidia... rigs now out there.

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