AnandTech SPEC2006 scores for ARM SoC

By: David Hess (davidwhess.delete@this.gmail.com), November 9, 2018 7:43 am
Room: Moderated Discussions
Maynard Handley (name99.delete@this.name99.org) on November 7, 2018 7:16 am wrote:
>
> On the more technical side, what's the current state of the art of phase change materials for smoothing
> out thermals? Clearly all these SoCs have the property that they can run fast in short bursts, but are
> forced to throttle as temperature rises. Are there practical phase change materials (eg cheap enough,
> non-toxic, low enough volume) that could absorb the excess heat generated enough to make a substantial
> difference in the length of the fast phase? eg extend it from (?30 seconds? to ?5 minutes?)

It is almost trivially easy to do this. There are lots of materials which can be tailored to have a melting point in the right range and have a higher thermal capacity than the aluminum or copper commonly used as a heat spreader.

> (For now let's limit ourselves to the question of whether this can be done. Even if it can be done, I'm not
> SURE it's of practical value -- are there important use cases that call for maximum performance over these sorts
> of time spans? But right now I'm simply curious as to what the state of the art is in thermal inertia.)

I think the problem is the practical value; the applications which call for this sort of thing operate over a longer period of time and nobody cares about only seconds to minutes. If a copper or aluminum heat spreader is used in a high power application, then it covers short spans of time. It would be cheaper to install a copper/water heat pipe which has less thermal capacity but makes up for it with a large surface area on the radiating side and they make heat pipes for exactly this sort of heat spreading application.
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AnandTech SPEC2006 scores for ARM SoCGian-Carlo Pascutto2018/11/07 01:29 AM
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      AnandTech SPEC2006 scores for ARM SoCGian-Carlo Pascutto2018/11/07 06:18 AM
        AnandTech SPEC2006 scores for ARM SoCAndrei2018/11/07 07:02 AM
      AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/07 08:16 AM
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          AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/07 02:05 PM
        AnandTech SPEC2006 scores for ARM SoCDavid Hess2018/11/09 07:43 AM
          AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/09 09:02 AM
            AnandTech SPEC2006 scores for ARM SoCDavid Hess2018/11/09 03:31 PM
      AnandTech SPEC2006 scores for ARM SoCdmcq2018/11/07 08:46 AM
        AnandTech SPEC2006 scores for ARM SoCnone2018/11/07 09:24 AM
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            AnandTech SPEC2006 scores for ARM SoCdmcq2018/11/07 03:02 PM
              AnandTech SPEC2006 scores for ARM SoCWilco2018/11/07 04:56 PM
                AnandTech SPEC2006 scores for ARM SoCAndrei2018/11/08 01:20 AM
              AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/07 05:20 PM
              AnandTech SPEC2006 scores for ARM SoCnone2018/11/07 10:12 PM
                AnandTech SPEC2006 scores for ARM SoCnone2018/11/07 10:15 PM
          AnandTech SPEC2006 scores for ARM SoCBeastian2018/11/08 08:10 AM
            AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/08 08:22 AM
              AnandTech SPEC2006 scores for ARM SoCBeastian2018/11/08 08:32 AM
                AnandTech SPEC2006 scores for ARM SoCBeastian2018/11/08 08:36 AM
                  AnandTech SPEC2006 scores for ARM SoCAndrei2018/11/09 02:06 AM
                    AnandTech SPEC2006 scores for ARM SoCpassing rando2018/11/09 10:10 AM
              AnandTech SPEC2006 scores for ARM SoCGian-Carlo Pascutto2018/11/08 08:58 AM
                AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/08 11:03 AM
                  AnandTech SPEC2006 scores for ARM SoCGian-Carlo Pascutto2018/11/08 12:29 PM
                    AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/08 03:39 PM
                      AnandTech SPEC2006 scores for ARM SoCWilco2018/11/08 04:12 PM
            AnandTech SPEC2006 scores for ARM SoCDoug S2018/11/08 10:25 AM
              AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/08 11:18 AM
                AnandTech SPEC2006 scores for ARM SoCDoug S2018/11/08 03:00 PM
                  AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/08 03:48 PM
                    AnandTech SPEC2006 scores for ARM SoCDoug S2018/11/09 12:15 PM
                      AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/09 08:23 PM
                        AnandTech SPEC2006 scores for ARM SoCDoug S2018/11/10 03:43 AM
                          AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/10 07:46 AM
                            AnandTech SPEC2006 scores for ARM SoCJukka Larja2018/11/10 08:41 AM
                              AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/10 09:25 AM
                                AnandTech SPEC2006 scores for ARM SoCJukka Larja2018/11/10 12:54 PM
                                  AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/10 02:17 PM
                                    AnandTech SPEC2006 scores for ARM SoCJukka Larja2018/11/11 12:24 AM
                          AnandTech SPEC2006 scores for ARM SoCBrett2018/11/10 01:24 PM
                        AnandTech SPEC2006 scores for ARM SoCJukka Larja2018/11/10 04:12 AM
                          AnandTech SPEC2006 scores for ARM SoCdmcq2018/11/10 06:21 AM
                          AnandTech SPEC2006 scores for ARM SoCMichael S2018/11/10 05:33 PM
                            AnandTech SPEC2006 scores for ARM SoCAnon2018/11/10 08:52 PM
                              AnandTech SPEC2006 scores for ARM SoCJukka Larja2018/11/10 11:56 PM
                  AnandTech SPEC2006 scores for ARM SoCDavid Hess2018/11/09 09:08 AM
              AnandTech SPEC2006 scores for ARM SoCBeastian2018/11/08 06:53 PM
                AnandTech SPEC2006 scores for ARM SoCMaynard Handley2018/11/09 05:12 AM
                  AnandTech SPEC2006 scores for ARM SoCdmcq2018/11/09 05:26 AM
                  AnandTech SPEC2006 scores for ARM SoCDoug S2018/11/09 12:06 PM
                AnandTech SPEC2006 scores for ARM SoCdmcq2018/11/09 05:15 AM
              AnandTech SPEC2006 scores for ARM SoCFoo_2018/11/09 01:16 PM
                AnandTech SPEC2006 scores for ARM SoCDoug S2018/11/09 01:36 PM
      AnandTech SPEC2006 scores for ARM SoCDavid Hess2018/11/09 06:27 AM
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