Cortex-A72 Technical Reference Manual

By: Alberto (git.delete@this.git.it), March 7, 2015 5:52 am
Room: Moderated Discussions
Ronald Maas (rmaas.delete@this.wiwo.nl) on March 6, 2015 8:11 pm wrote:
> Alberto (git.delete@this.git.it) on March 6, 2015 3:30 pm wrote:
> > Exophase (exophase.delete@this.gmail.com) on March 6, 2015 11:52 am wrote:
> > > Alberto (git.delete@this.git.it) on March 6, 2015 10:58 am wrote:
> > > > Or "less" performance vs. A57 clock to clock??? :-).
> > >
> > > If you're going to insist that Peter Greenhalgh is flat out lying (and to quite a degree) you'd
> > > better find some substantial evidence to back it up. Your reasoning so far is very flimsy.
> > >
> > > > Qualcomm considers A72 a lower end core than A57, if i have read well on their web site.
> > >
> > > Nonsense. You can't compare across different part generations
> > > like that. And you're overlooking that Qualcomm's
> > > 620 is manufactured on TSMC 28HPm while 810 was on 20nm and 820 will be on one of the FinFET processes.
> > > Not to mention, these different SKUs are artificially segmented by clock speed, meaning it says nothing
> > > about the full potential of the CPU. All it means is that for this part Cortex-A72 was a more attractive
> > > choice than Cortex-A57 (which should have been obvious) with
> > > no implication that the CPU trades peak performance
> > > or perf/MHz for perf/W - a step that we've never seen ARM take in succeeding CPUs.
> > >
> >
> > Calm down, i see what i can see. I see a medium level SOC equipped with a 1.8GHz A72,
> > only 200Mhz slower than A57 on the brand new powerful and expensive 810, point. No matter
> > the manufacturing process, we are speaking of pure performance and clock speeds.
> > This is has nothing to do with this engineer and its words.
> >
> > We not even know if "this" A72 will be the same A72 on track for the 16nm node.
>
> The fact that Qualcomm will use A72 for their upcoming medium level range only tells me that they have
> a lot of confidence in the performance of their Snapdragon 820 custom Kyro core. Comparing 620 with
> 810 is not relevant for predicting the relative performance of A72 vs A57. A72 is going to be faster
> clock-for-clock compared to A57. Peter Greenhalgh was very clear about that in his recent post.

Not relevant 810??. The flagship up to early 2016....come on. So it will be slower than 620???.....given the huge claimed boost on Ipc.
If you give credit to this pile of crap is a your problem :-)

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TopicPosted ByDate
Cortex-A72 Technical Reference ManualRonald Maas2015/03/05 07:01 AM
  Cortex-A72 Technical Reference Manualdmcq2015/03/05 10:01 AM
  Cortex-A72 Technical Reference ManualAlberto2015/03/05 10:06 AM
    Cortex-A72 Technical Reference ManualExophase2015/03/05 11:57 AM
      Cortex-A72 Technical Reference ManualAlberto2015/03/06 09:45 AM
        Cortex-A72 Technical Reference ManualWilco2015/03/06 11:49 AM
          Cortex-A72 Technical Reference ManualAlberto2015/03/06 01:09 PM
            Cortex-A72 Technical Reference ManualWilco2015/03/07 08:37 AM
          Cortex-A72 Technical Reference Manualjuanrga2015/03/06 05:18 PM
    Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/05 02:40 PM
      Cortex-A72 Technical Reference ManualWilco2015/03/05 03:28 PM
        Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/05 11:32 PM
        Cortex-A72 Technical Reference ManualDavid Kanter2015/03/05 11:42 PM
          Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/06 01:55 AM
            Cortex-A72 Technical Reference Manualnone2015/03/06 02:36 AM
              Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/06 03:08 AM
                Cortex-A72 Technical Reference Manualnone2015/03/06 03:12 AM
                Cortex-A72 Technical Reference ManualWilco2015/03/06 03:39 AM
          Cortex-A72 Technical Reference ManualWilco2015/03/06 04:04 AM
            Cortex-A72 Technical Reference Manualnone2015/03/06 04:50 AM
              Cortex-A72 Technical Reference ManualWilco2015/03/07 08:26 AM
                Cortex-A72 Technical Reference Manualnone2015/03/09 12:10 AM
                  Cortex-A72 Technical Reference Manualdmcq2015/03/09 01:14 AM
                    Cortex-A72 Technical Reference Manualnone2015/03/09 01:53 AM
          Cortex-A72 Technical Reference ManualBrett2015/03/06 11:57 AM
            Cortex-A72 Technical Reference ManualKlimax2015/03/06 12:39 PM
            Cortex-A72 Technical Reference ManualExophase2015/03/06 01:22 PM
            Cortex-A72 Technical Reference ManualWilco2015/03/06 01:31 PM
              Cortex-A72 Technical Reference Manualjuanrga2015/03/06 05:22 PM
                Broadcom VulcanBrett2015/03/07 01:56 PM
                  Broadcom Vulcananon2015/03/07 04:01 PM
                    Broadcom VulcanAnon2015/03/07 05:43 PM
                      Broadcom VulcanBrett2015/03/07 08:10 PM
                        Broadcom VulcanMichael S2015/03/08 01:30 AM
                          Broadcom VulcanGabriele Svelto2015/03/08 03:55 AM
                    Broadcom VulcanHugo Décharnes2015/03/08 12:47 AM
                      Broadcom VulcanExophase2015/03/08 10:58 AM
                  Broadcom Vulcanjuanrga2015/03/07 06:06 PM
                    Broadcom VulcanBrett2015/03/07 08:26 PM
                      Broadcom Vulcanjuanrga2015/03/08 05:48 AM
                        Broadcom VulcanBrett2015/03/30 05:50 PM
                          Broadcom Vulcandmcq2015/03/31 03:33 AM
                  Broadcom VulcanDavid Kanter2015/03/08 01:46 AM
                    Broadcom VulcanGabriele Svelto2015/03/08 03:57 AM
                    Broadcom Vulcanjuanrga2015/03/08 06:12 AM
              Cortex-A72 Technical Reference ManualDavid Kanter2015/03/06 11:43 PM
                Cortex-A72 Technical Reference Manualjuanrga2015/03/07 05:16 AM
                Cortex-A72 Technical Reference ManualWilco2015/03/07 08:50 AM
                  Cortex-A72 Technical Reference ManualDavid Kanter2015/03/08 01:30 AM
                    Cortex-A72 Technical Reference ManualMichael S2015/03/08 03:14 AM
                    Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/08 03:26 AM
                      Cortex-A72 Technical Reference Manualjuanrga2015/03/08 05:51 AM
                        Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/08 06:08 AM
                    Cortex-A72 Technical Reference ManualKlimax2015/03/08 07:44 AM
                  Cortex-A72 Technical Reference ManualGabriele Svelto2015/03/08 03:01 AM
              Cortex-A72 Technical Reference Manualanon2015/03/07 10:41 AM
            Cortex-A72 Technical Reference ManualDavid Kanter2015/03/06 11:37 PM
              Cortex-A72 Technical Reference ManualExophase2015/03/06 11:45 PM
              Cortex-A72 Technical Reference ManualJouni Osmala2015/03/07 01:54 AM
              Cortex-A72 Technical Reference Manualhashhash2015/03/07 06:06 AM
      Cortex-A72 Technical Reference Manualnone2015/03/05 11:36 PM
        Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/06 01:47 AM
          Cortex-A72 Technical Reference Manualnone2015/03/06 02:29 AM
            Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/06 03:02 AM
        Cortex-A72 Technical Reference Manualjuanrga2015/03/06 08:38 AM
          Cortex-A72 Technical Reference ManualJouni Osmala2015/03/06 09:27 AM
      Cortex-A72 Technical Reference ManualAlberto2015/03/06 09:58 AM
        Cortex-A72 Technical Reference ManualExophase2015/03/06 10:52 AM
          Cortex-A72 Technical Reference ManualAlberto2015/03/06 02:30 PM
            Cortex-A72 Technical Reference Manualjuanrga2015/03/06 05:32 PM
            Cortex-A72 Technical Reference ManualRonald Maas2015/03/06 07:11 PM
              Cortex-A72 Technical Reference ManualAlberto2015/03/07 05:52 AM
                Cortex-A72 Technical Reference ManualRonald Maas2015/03/07 08:52 AM
  Cortex-A72 Technical Reference ManualNoSpammer2015/03/05 11:33 AM
  Add two more differences.Jouni Osmala2015/03/05 02:13 PM
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