Cortex-A72 Technical Reference Manual

By: juanrga (nospam.delete@this.juanrga.com), March 8, 2015 5:51 am
Room: Moderated Discussions
Hugo Décharnes (hdecharn.delete@this.outlook.fr) on March 8, 2015 3:26 am wrote:
>
Just consider A8->A9->A15->A57. Geekbench single-threaded result increases 10x from 600MHz A8 to 2.1GHz A57.
> That's a 42% IPC gain per generation plus a 52% clock frequency gain. Are you denying that?
Most benchmarks
> exhibit more ILP than are available in commonly used programs. They are not representative of lambda user's
> workload. These results are impressive (and that's why industrials use such benchmarks to praise the quality
> of their products) due to the very nature of the workloads: a lot of parallelism and predictable branches.

This argument applies to any ISA.

Instead ~30% IPC gain per gen for ARM we can take ~15% for typical user workloads.
Instead ~10% IPC gain per gen for x86 we can take ~5% for typical user workloads.

In any case the evolution of ARM is faster than x86 as everyone knows.
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Cortex-A72 Technical Reference ManualRonald Maas2015/03/05 07:01 AM
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    Cortex-A72 Technical Reference ManualExophase2015/03/05 11:57 AM
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        Cortex-A72 Technical Reference ManualWilco2015/03/06 11:49 AM
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          Cortex-A72 Technical Reference Manualjuanrga2015/03/06 05:18 PM
    Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/05 02:40 PM
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        Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/05 11:32 PM
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                  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
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        Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/06 01:47 AM
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            Cortex-A72 Technical Reference ManualHugo Décharnes2015/03/06 03:02 AM
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      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
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            Cortex-A72 Technical Reference ManualRonald Maas2015/03/06 07:11 PM
              Cortex-A72 Technical Reference ManualAlberto2015/03/07 05:52 AM
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  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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