Cortex-A72 Technical Reference Manual

By: juanrga (nospam.delete@this.juanrga.com), March 6, 2015 5:22 pm
Room: Moderated Discussions
Wilco (Wilco.Dijkstra.delete@this.ntlworld.com) on March 6, 2015 2:31 pm wrote:
> Brett (ggtgp.delete@this.yahoo.com) on March 6, 2015 12:57 pm wrote:
> > David Kanter (dkanter.delete@this.realworldtech.com) on March 6, 2015 12:42 am wrote:
> > > > A57 is definitely more than 20% faster at the same clock, as you can easily conclude
> > > > from various benchmarks (eg. Geekbench shows 40% single threaded gain overall
> > > > in AArch32 mode between Galaxy S5 and Galaxy S6 at the same clock).
> > >
> > > That's a bogus comparison since Geekbench contains lots of AES
> > > stuff, and ARM64 contains special instructions for AES.
> >
> > Are you accusing ARM of pulling an Intel, making sure that benchmarks are dominated
> > by feature X right before Intel adds feature X to the instruction set. ;)
> >
> > This tactic is old hat, blatantly obvious for over a decade. Happy
> > to see that ARM is playing by the rules of the CPU market.
>
> Yeah ARM is to blame, after all Intel only added AES early 2010...
>
> > > What's the speedup on GCC?
> >
> > GCC is the worst pointer chasing spaghetti on the planet. You have to brute force tweak hundreds
> > of CPU details so as not to get burned by one of a hundred glass jaws that will cripple your
> > performance. This takes billions of dollars that AMD does not have, much less tiny ARM.
> >
> > Unless IBM gets into the ARM64 business Intel is going to dominate the GCC comparison
> > for the next two decades, longer than I expect Intel to survive as dominate company.
> > $15 SOC's don't generate the sort of revenues that justify optimizing for GCC.
>
> GCC is a hard benchmark indeed but it's not going to cost billions of dollars to design next
> generation CPUs that do better. Did Athlon64 cost billions? All it took was a brilliant design
> and a great team to make it happen. The trend is obvious, each new generation of ARM cores improves
> by 30-50%. I wonder what would happen if say the Athlon64 designer does an ARM...

I don't expect K12 to be significantly better than Vulcan.
< Previous Post in ThreadNext Post in Thread >
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
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell avocado?