ARM announces A72

By: Maynard Handley (name99.delete@this.name99.org), February 4, 2015 10:42 am
Room: Moderated Discussions
Seni (seniike.delete@this.hotmail.com) on February 4, 2015 1:19 am wrote:
> Ronald Maas (rmaas.delete@this.wiwo.nl) on February 3, 2015 8:23 pm wrote:
> > Hugo Décharnes (hdecharn.delete@this.outlook.fr) on February 3, 2015 2:20 pm wrote:
> > > Cortex-A57 delivers better performances than Cortex-A15, though their micro-architectures
> > > are–nearly–identical. We'll see if ARM Ltd. reiterates with Cortex-A72.
> >
> > ARM's own web page about Cortex-A72 mentions 'major micro-architectural improvements'. This
> > implies that the micro-architecture will be different compared to the Cortex-A15/A57.
> >
> > So guys. Any ideas what ARM could have do to make such an impressive performance
> > improvement compared to A57? My pick (entirely speculative of cause):
> >
> > - 4 instruction decoder
> > - memory disambiguation
> > - 2 x 128-bit NEON execution units
> >
> > Ronald
>
> Most likely:
>
> - repipelined for ~30% higher frequency target
> - more simd
> - wider memory bus
> - nothing else

You don't think they'll at least add the ARMv8.1 RMW atomics? (Not that that changes performance substantially, but I imagine they want that part of the ISA to be universalized ASAP.)

< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
ARM announces A72Maynard Handley2015/02/03 11:36 AM
  ARM announces A72anon2015/02/03 12:53 PM
    ARM announces A72Hugo Décharnes2015/02/03 01:20 PM
      ARM announces A72juanrga2015/02/03 04:15 PM
        ARM announces A72Wilco2015/02/04 12:58 AM
          ARM announces A72Eric Bron2015/02/04 01:48 AM
            ARM announces A72none2015/02/04 02:24 AM
              ARM announces A72Eric Bron2015/02/04 02:42 AM
                ARM announces A72Exophase2015/02/04 07:01 AM
                  ARM announces A72Anon2015/02/04 07:35 AM
                    ARM announces A72Exophase2015/02/04 07:58 AM
                      ARM announces A72Groo2015/02/04 09:24 AM
                ARM Marketing, BS up to my earsDavid Kanter2015/02/04 10:51 AM
                  ARM Marketing, BS up to my earsMaynard Handley2015/02/04 01:59 PM
                    ARM Marketing, BS up to my earsDavid Kanter2015/02/04 02:21 PM
                  ARM Marketing, BS up to my earsGroo2015/02/04 02:30 PM
          ARM announces A72juanrga2015/02/04 04:23 AM
            ARM announces A72Wilco2015/02/04 03:01 PM
              ARM announces A72juanrga2015/02/04 04:06 PM
        ARM announces A72Anon2015/02/04 01:28 AM
          ARM announces A72juanrga2015/02/04 04:31 AM
            ARM announces A72Aaron Spink2015/02/04 06:49 AM
      ARM announces A72Ronald Maas2015/02/03 07:23 PM
        ARM announces A72Seni2015/02/04 12:19 AM
          ARM announces A72Maynard Handley2015/02/04 10:42 AM
            ARM announces A72Seni2015/02/04 12:33 PM
              ARM announces A72dmcq2015/02/04 12:57 PM
            ARM announces A72Ronald Maas2015/02/04 06:42 PM
        ARM announces A72anon2015/02/04 05:19 AM
          ARM announces A72Exophase2015/02/04 07:31 AM
            ARM announces A72David Kanter2015/02/04 10:25 AM
              ARM announces A72Exophase2015/02/04 01:33 PM
                ARM announces A72anon2015/02/04 10:27 PM
                  ARM announces A72 (fixed format)anon2015/02/04 10:29 PM
                  ARM announces A72Exophase2015/02/04 11:11 PM
                    ARM announces A72anon2015/02/05 12:02 AM
            ARM announces A72anon2015/02/04 05:57 PM
  ARM announces A72Wilco2015/02/03 01:39 PM
    ARM announces A72Maynard Handley2015/02/03 02:13 PM
      ARM announces A72anon2015/02/03 02:29 PM
      ARM announces A72Wilco2015/02/03 02:44 PM
    ARM announces A72David Kanter2015/02/04 09:56 AM
      ARM announces A72Peter Greenhalgh2015/02/04 10:56 AM
        ARM announces A72Aaron Spink2015/02/04 11:59 AM
          ARM announces A72Alberto2015/02/07 10:22 AM
            ARM announces A72Exophase2015/02/07 10:47 AM
              ARM announces A72Alberto2015/02/07 12:44 PM
                ARM announces A72Exophase2015/02/07 02:35 PM
                  ARM announces A72Alberto2015/02/08 01:09 AM
                    ARM announces A72Exophase2015/02/08 11:05 AM
              ARM announces A72David Kanter2015/02/08 12:39 AM
                ARM announces A72dmcq2015/02/08 04:14 AM
                  ARM announces A72Michael S2015/02/08 04:38 AM
                    ARM announces A72Gabriele Svelto2015/02/10 05:11 AM
                      ARM announces A72Jouni Osmala2015/02/10 11:24 AM
                        slit vs unifiedMichael S2015/02/10 01:57 PM
                          slit vs unifieddmcq2015/02/11 05:44 AM
                  ARM announces A72Doug S2015/02/08 09:00 AM
                ARM announces A72Exophase2015/02/08 10:57 AM
        ARM announces A72dmcq2015/02/04 01:10 PM
        ARM announces A72David Kanter2015/02/04 02:28 PM
      ARM announces A72Wilco2015/02/04 01:59 PM
        ARM announces A72Aaron Spink2015/02/04 09:31 PM
        Intel 32nm vs 14 nmMichael S2015/02/05 01:03 AM
          Intel 32nm vs 14 nmWilco2015/02/05 02:27 AM
            Intel 32nm vs 14 nmDavid Kanter2015/02/05 09:05 AM
              Intel 32nm vs 14 nmcarop2015/02/05 11:12 AM
                Normalize to drawn or effective width?David Kanter2015/02/05 11:45 AM
                  Normalize to drawn or effective width?carop2015/02/05 02:40 PM
                    Normalize to drawn or effective width?David Kanter2015/02/06 12:44 PM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell green?