ARM announces 2GHz netbook CPU

By: Michael S (already5chosen.delete@this.yahoo.com), September 18, 2009 5:48 am
Room: Moderated Discussions
Wilco (Wilco.Dijkstra@ntlworld.com) on 9/18/09 wrote:
---------------------------
>Cortex-A8 and Atom are similar 2-way in-order cores to compare with. You're not
>going to get a better comparison than this. Cortex-A8 is pretty much the same as
>Cortex-A9, with the key difference that it is in-order. In fact they are so similar
>that you could argue that ARM should have skipped the A8 and immediately go OoO.
>

I don't agree that Cortex-A9 is equalt of Silverhorne when it comes to execution resuorces:
1. Silverthorne is sort-of 2.5-way core in 2-way closes. With right input stream it could sustain load+two ALU operations.
2. Cortex-A9 claims "double the performance of previous ARM FPU", which probably means peak scalar double-precision throughput between 1/3 to 1/2 of Silverthorne. Of course, on real-world compiled codes Cortex-A9 would be MUCH closer to his peak DFLOPs peak than Silverthorne would be to his, but that's another story.
3. Another issue is L2 cache. It seems, Silverthorne's is much higher performance than Cortex-A9, esp. when it comes to latency. For bigger applications that could be a single most significant difference between the two, giving to inferior in most other aspects Silverthorne core a significant edge.

As to Cortex-A8, wasn't it just rushed out to the market half-baked? I can't believe that it is the based possible general-purpose-performance-oriented 2-way in-order ARM-Cortex+Neon design.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
ARM announces 2GHz netbook CPUWilco2009/09/16 11:00 AM
  ARM announces 2GHz netbook CPURichard Cownie2009/09/16 03:51 PM
  ARM announces 2GHz netbook CPUPotatoswatter2009/09/16 04:12 PM
  ARM announces 2GHz netbook CPUMegol2009/09/16 04:21 PM
    ARM announces 2GHz netbook CPUWilco2009/09/18 01:13 AM
      ARM announces 2GHz netbook CPUMegol2009/09/18 11:54 AM
  ARM announces 2GHz netbook CPUsomeone2009/09/16 06:01 PM
  ARM announces 2GHz netbook CPUSeni2009/09/16 06:41 PM
    ARM announces 2GHz netbook CPUsomeone2009/09/16 07:32 PM
      ARM announces 2GHz netbook CPUanon2009/09/16 08:58 PM
      ARM announces 2GHz netbook CPUDavid Kanter2009/09/17 04:53 AM
        ARM announces 2GHz netbook CPUsomeone2009/09/17 06:10 AM
          ARM announces 2GHz netbook CPUDavid Kanter2009/09/17 03:02 PM
            ARM announces 2GHz netbook CPUanon2009/09/20 05:34 PM
      ARM announces 2GHz netbook CPUSeni2009/09/17 02:05 PM
        ARM announces 2GHz netbook CPUWilco2009/09/17 03:29 PM
          ARM announces 2GHz netbook CPUSeni2009/09/17 03:53 PM
            ARM announces 2GHz netbook CPUWilco2009/09/17 11:31 PM
              ARM announces 2GHz netbook CPUDavid Kanter2009/09/18 04:17 PM
  ARM announces 2GHz netbook CPUJouni Osmala2009/09/16 09:40 PM
    ARM announces 2GHz netbook CPUMartin Høyer Kristiansen2009/09/17 01:15 AM
      ARM announces 2GHz netbook CPUWilco2009/09/18 01:56 AM
        ARM announces 2GHz netbook CPUJouni Osmala2009/09/18 04:46 AM
          ARM announces 2GHz netbook CPUMichael S2009/09/18 06:22 AM
          ARM announces 2GHz netbook CPUWilco2009/09/18 11:36 AM
            ARM announces 2GHz netbook CPUrcf2009/09/19 08:49 AM
              The other sides of the coin?2009/09/19 11:09 AM
                The other sides of the coinPaul2009/09/20 02:30 AM
                  The other sides of the coinJukka Larja2009/09/20 10:20 PM
          ARM announces 2GHz netbook CPUAM2009/09/19 03:41 AM
        ARM announces 2GHz netbook CPUMichael S2009/09/18 05:15 AM
        ARM announces 2GHz netbook CPUMichael S2009/09/18 05:48 AM
          ARM announces 2GHz netbook CPUWilco2009/09/18 01:15 PM
            ARM announces 2GHz netbook CPUMichael S2009/09/20 09:00 AM
              ARM announces 2GHz netbook CPULinus Torvalds2009/09/20 09:59 AM
                ARM announces 2GHz netbook CPUMichael S2009/09/20 10:42 AM
                  ARM announces 2GHz netbook CPULinus Torvalds2009/09/20 02:19 PM
                    ARM announces 2GHz netbook CPUMichael S2009/09/20 03:12 PM
                    ARM announces 2GHz netbook CPUanonymous2009/09/20 04:58 PM
                      ARM announces 2GHz netbook CPUMichael S2009/09/21 02:49 AM
                        ARM announces 2GHz netbook CPUWilco2009/09/21 03:38 AM
                          ARM announces 2GHz netbook CPULinus Torvalds2009/09/21 07:05 AM
                            ARM announces 2GHz netbook CPUnone2009/09/21 07:10 AM
                              ARM announces 2GHz netbook CPULinus Torvalds2009/09/21 08:24 AM
                                ARM announces 2GHz netbook CPUIntelUser20002009/09/21 06:59 PM
                                  ARM announces 2GHz netbook CPULinus Torvalds2009/09/21 07:15 PM
                    Atom-based Octane IIIDavid Wragg2009/09/22 04:11 AM
                      Atom-based Octane IIIArun Ramakrishnan2009/09/22 10:02 PM
                        Many Atoms -> Molecule ? :-) (NT)Anon42009/09/23 03:49 AM
                          Many Atoms -> Molecule ? :-) (NT)Arun Ramakrishnan2009/09/23 04:11 AM
            Scalar DFlops/HzMichael S2009/09/20 12:00 PM
              Scalar DFlops/HzWilco2009/09/20 12:45 PM
                VMLA.f64 Michael S2009/09/20 01:46 PM
                  VMLA.f64 Paul2009/09/20 02:16 PM
                  VMLA.f64 Wilco2009/09/20 04:45 PM
        ARM announces 2GHz netbook CPUDavid Kanter2009/09/18 04:19 PM
  Who wants an ARM netbook?slacker2009/09/17 12:05 AM
    Who wants an ARM netbook?slacker2009/09/17 12:21 AM
    Who wants an ARM netbook?Wilco2009/09/17 02:10 AM
      Who wants an ARM netbook?xxx2009/09/17 02:31 AM
        Who wants an ARM netbook?Wilco2009/09/17 03:04 AM
          Who wants an ARM netbook?Hello2009/09/21 06:47 AM
            Who wants an ARM netbook?none2009/09/21 09:04 AM
              Who wants an ARM netbook?Wilco2009/09/21 02:12 PM
                Who wants an ARM netbook?Hello2009/09/22 02:46 AM
    Who wants an ARM netbook?Gian-Carlo Pascutto2009/09/17 02:24 AM
      Who wants an ARM netbook?slacker2009/09/17 04:28 AM
        Who wants an ARM netbook?Gian-Carlo Pascutto2009/09/17 05:23 AM
        Who wants an ARM netbook?rcf2009/09/17 06:58 AM
    Who wants an ARM netbook?Cooper2009/09/17 03:33 PM
      Who wants an ARM netbook?anon2009/09/17 05:32 PM
        Who wants an ARM netbook?anon2009/09/17 10:50 PM
    Who wants an ARM netbook?Howard Chu2009/09/17 08:48 PM
    Who wants an ARM netbook?Foo_2009/09/21 03:44 AM
  ARM for serverKISS2009/09/17 06:13 AM
    ARM for serverLinus Torvalds2009/09/17 06:57 AM
      ARM for serverAdrian2009/09/17 08:04 AM
        ARM for serverRichard Cownie2009/09/17 08:19 AM
          ARM for serverAdrian2009/09/17 08:49 AM
            Let's talk about an ARM-inside big machineKISS2009/09/17 09:08 AM
              Let's talk about an ARM-inside big machineanon2009/09/17 09:44 AM
                Let's talk about an ARM-inside big machineRichard Cownie2009/09/17 11:00 AM
                  article about google serverRichard Cownie2009/09/17 11:04 AM
                  Let's talk about an ARM-inside big machineanon2009/09/17 11:28 AM
                    Let's talk about an ARM-inside big machineRichard Cownie2009/09/17 11:47 AM
                      Let's talk about an ARM-inside big machineanon2009/09/17 10:31 PM
                NetworkingDavid Kanter2009/09/18 05:13 PM
                  NetworkingWilco2009/09/19 01:35 AM
                    NetworkingPaul2009/09/19 05:47 AM
                    Networkinganon2009/09/19 06:03 AM
                    NetworkingDavid Kanter2009/09/19 02:04 PM
                      NetworkingWilco2009/09/19 03:15 PM
                        NetworkingDavid Kanter2009/09/19 03:37 PM
                          NetworkingWilco2009/09/20 05:11 AM
              Let's talk about an ARM-inside big machinea reader2009/09/17 01:28 PM
              Let's talk about an ARM-inside big machineA. No. Nymous2009/09/24 04:48 PM
                Let's talk about an ARM-inside big machineHoward Chu2009/09/24 10:19 PM
                Let's talk about an ARM-inside big machineKISS2009/09/26 12:06 AM
            Screen resolutionsRob Thorpe2009/09/18 10:09 AM
              Screen resolutionsHoward Chu2009/09/18 12:32 PM
        ARM for serverGroo2009/09/17 12:15 PM
          ARM for serverRichard Stacpoole2009/09/17 02:49 PM
            ARM for serverRichard Cownie2009/09/17 06:35 PM
              ARM for serverRichard Stacpoole2009/09/17 09:21 PM
                ARM for serverLinus Torvalds2009/09/18 06:33 AM
                  ARM for serverMichael S2009/09/18 07:15 AM
                  ARM for serverRichard Cownie2009/09/18 07:56 AM
                  ARM for serverslacker2009/09/18 03:50 PM
                    causes of mechanical stressRichard Cownie2009/09/18 04:27 PM
                      causes of mechanical stressslacker2009/09/18 05:42 PM
                        causes of mechanical stressRichard Cownie2009/09/18 06:06 PM
                          causes of mechanical stressHoward Chu2009/09/18 06:14 PM
                            causes of mechanical stressRichard Cownie2009/09/18 07:33 PM
                              causes of mechanical stressHoward Chu2009/09/18 09:31 PM
                            causes of mechanical stressAnin2009/09/19 10:28 PM
                              causes of mechanical stressMegol2009/09/22 06:58 AM
                          causes of mechanical stressslacker2009/09/18 08:13 PM
                            causes of mechanical stressRichard Cownie2009/09/18 08:52 PM
                              causes of mechanical stressDavid Kanter2009/09/18 10:31 PM
                              causes of mechanical stressUngo2009/09/22 04:34 PM
                                causes of mechanical stressRichard Cownie2009/09/23 10:00 AM
                        causes of mechanical stressLinus Torvalds2009/09/19 08:44 AM
                          causes of mechanical stressRichard Cownie2009/09/19 11:24 AM
                          causes of mechanical stressslacker2009/09/19 04:33 PM
                          anecdotal lack of reliability of Macskdg2009/09/21 12:08 PM
                            anecdotal lack of reliability of Macsanon2009/09/22 09:30 AM
                              anecdotal lack of reliability of Macskdg2009/09/22 11:33 AM
                    ARM for serverAnon2009/09/18 07:35 PM
                      ARM for serveranon2009/09/18 08:20 PM
                        ARM for serverRagingDragon2009/09/19 12:33 PM
                          ARM for serveranon2009/09/20 11:29 AM
                        ARM for serverAnon2009/09/19 02:29 PM
                          ARM for serveranon2009/09/20 11:24 AM
                            ARM for serverRagingDragon2009/09/20 02:16 PM
                              [O.T.] "carbon steel"Michael S2009/09/20 03:45 PM
                                [O.T.] "carbon steel"slacker2009/09/20 05:04 PM
                                [O.T.] "carbon steel"RagingDragon2009/09/21 09:42 PM
                                  [O.T.] "carbon steel"Michael S2009/09/22 12:36 AM
                            ARM for serverAnon2009/09/20 06:52 PM
                              ARM for serveranon2009/09/26 07:56 AM
                          ARM for serverUngo2009/09/22 04:25 PM
                            ARM for serverRagingDragon2009/09/23 11:13 AM
                              ARM for serverCarlie Coats2009/09/24 09:28 AM
                      ARM for serverslacker2009/09/18 08:24 PM
                  ARM for serverRichard Stacpoole2009/09/18 05:34 PM
                  ARM for serverJukka Larja2009/09/18 09:17 PM
                    ARM for serverMegol2009/09/19 02:18 AM
                ARM for serverRichard Cownie2009/09/18 07:31 AM
                  ARM for serverRichard Stacpoole2009/09/18 05:18 PM
                    ARM for serverRichard Cownie2009/09/18 09:20 PM
                      ARM for serverRichard Stacpoole2009/09/19 12:02 AM
                        ARM for serverRichard Cownie2009/09/19 03:57 AM
                          ARM for serverRichard Stacpoole2009/09/19 04:24 AM
                            ARM for serverRichard Cownie2009/09/19 07:12 AM
                  ARM for serverJukka Larja2009/09/18 09:57 PM
          ARM for serverMark Christiansen2009/09/18 03:17 PM
      Cortex performanceTom W2009/09/19 08:52 AM
        Cortex performanceanon2009/09/19 09:50 AM
        Cortex performanceHoward Chu2009/09/19 11:57 AM
          Cortex performanceHoward Chu2009/09/19 12:05 PM
            Cortex performanceWilco2009/09/19 01:38 PM
              Cortex performanceHoward Chu2009/09/20 10:59 PM
  No silicon yet?someone2009/09/17 12:18 PM
    No silicon yet?anon2009/09/18 12:06 AM
      No silicon yet?anon2009/09/18 07:30 AM
      No silicon yet?Hello2009/09/21 07:38 AM
        No silicon yet?anon2009/09/21 12:44 PM
          No silicon yet?none2009/09/21 11:54 PM
            No silicon yet?Wilco2009/09/22 01:24 AM
              No silicon yet??2009/09/22 11:18 AM
                No silicon yet?IntelUser20002009/09/22 12:13 PM
                No silicon yet?none2009/09/22 01:40 PM
                  No silicon yet?Wilco2009/09/22 02:53 PM
                    No silicon yet?a reader2009/09/23 07:45 AM
                  No silicon yet??2009/09/22 11:34 PM
  Why China Mobile choose Marvell PXA920?Michael S2009/09/22 02:49 AM
    Why China Mobile choose Marvell PXA920?Wilco2009/09/22 02:23 PM
      Why China Mobile choose Marvell PXA920?Michael S2009/09/22 02:46 PM
        Why China Mobile choose Marvell PXA920?Wilco2009/09/22 03:03 PM
          Why China Mobile choose Marvell PXA920?Michael S2009/09/22 04:48 PM
    Why China Mobile choose Marvell PXA920?Paul2009/09/22 05:46 PM
      Why China Mobile choose Marvell PXA920?Anon42009/09/23 03:53 AM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell avocado?