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Linux Power Efficiency Of Skylake, Broadwell, Haswell & Kaveri Compared

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  • #21
    Originally posted by bug77 View Post

    I'm not sure what you mean by that. In my mind an enthusiast is someone who has to have performance. And an integrated GPU just doesn't deliver on that front.
    I agree.

    Hypothetically speaking, I imagine AMD might be able to engineer an APU that's an FX-8370 processor (their current flagship, not counting the factory overclocked FX-94xx chips) plus an integrated R9-380 GPU for some new socket. But then:
    - You can't upgrade the CPU independently of the GPU, and vice versa.
    - You have a motherboard with that socket type. So if you decide that you do prefer to upgrade CPU independently of GPU or GPU independently of CPU, you need to buy a new motherboard too.
    - AMD would have to hope lots of people buy this to cover their production costs.

    It just doesn't make sense. The sweet spot for APUs is right where AMD is today - $150 and less.

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    • #22
      And again I miss some IDLE comsumption tests indicating how much the CPU/GPU drains when it has nothing to do - which would be most of the time! Any opinions on that?

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      • #23
        Originally posted by bug77 View Post
        ... And what use would you have for a computer without RAM?
        Why without RAM? There would be HBM.

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        • #24
          Originally posted by drSeehas View Post
          Why without RAM? There would be HBM.
          You want to stick enough HBM onto that die to service both the video card and the rest of the system? Have you looked at the area the four dies on the Fury X occupy? And that's just 4GB RAM. For a usable enthusiast part you'd need something like 32GB between the GPU and the rest of the system. And that's ignoring the fact that HBM is high latency - high bandwidth, which is a good compromise for GPUs, but not so good for CPUs.

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          • #25
            Originally posted by bug77 View Post
            You want to stick enough HBM onto that die to service both the video card and the rest of the system?
            Yes, it is an APU and has HSA.

            Have you looked at the area the four dies on the Fury X occupy? And that's just 4GB RAM.
            This is first generation HBM.

            ... enthusiast ...
            An enthusiast won't use an APU/compact pc.
            An enthusiast will use a dedicated GPU.

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            • #26
              Originally posted by bug77 View Post

              You want to stick enough HBM onto that die to service both the video card and the rest of the system? Have you looked at the area the four dies on the Fury X occupy? And that's just 4GB RAM. For a usable enthusiast part you'd need something like 32GB between the GPU and the rest of the system. And that's ignoring the fact that HBM is high latency - high bandwidth, which is a good compromise for GPUs, but not so good for CPUs.
              32Gigs?

              Crazy are You, not enthusiastic.

              8GB RAM and 8GB GDDR5 is max what games need. You wont find any game that would take more.

              32GB is for professionals who do HD editing of videos and photos.

              But that 8+8 assume those are sepparate. Most of that space if for textures and the like that need to be prepared by CPU (thus DDR3) and then consummed by GPU (thus GDDR5)...

              With APU both CPU and GPU can work from same copy, so 8GB of HBM2.0 would be enough for today games. Add 16GB if You have cash.

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