core size: x86 vs IPF

Article: Sizing up the Super Heavyweights
By: Michael S (already5chosen.delete@this.yahoo.com), October 12, 2004 10:53 am
Room: Moderated Discussions
anonymous (no@spam.com) on 10/11/04 wrote:
---------------------------
>I find figure 3 interesting.
>
>A Dothan core is slightly smaller than a Montecito core.
>Rip out the x86 hardware, and they should be about equal.
>

I think Mcito's core is significantly larger than Dothan.
Probably about 65mm2 vs 402.
Core+L2 cache would be about equal for the two, but if you are going to add several MB of L3 cache anyway cutting off half of the Dothan's L2 with very small impact on performance.

>Now, with both running at, say 2 GHz, which one would be
>faster... assuming the same L2/L3 cache (read: die) size?
>

If the clock difference remains the same as on 130nm node, i.e. +6% for Dothan, SuperDothan will come ahead in all commercial applications that don't require >4GB and will come far ahead in SpecInt (may be as far as 25%). However SuperDothan wouldn't be competitive at all in LINPACK and not very competitive in SpecFp. Now when you need more than 4GB, like for top tcp scores, Dothan is simply not here yet.

>Is IPF really needed? :)


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New Silicon Insider ArticleDavid Kanter2004/10/11 05:43 AM
  Good read. Thanks again Paul. (NT)Michael Menietti2004/10/11 06:36 AM
  New Silicon Insider ArticleSingh, S.R.2004/10/11 06:44 AM
    New Silicon Insider ArticlePaul DeMone2004/10/11 06:55 AM
  New Silicon Insider Articletecate2004/10/11 09:52 AM
  core size: x86 vs IPFanonymous2004/10/11 11:43 AM
    Good Question. (NT)Chuck2004/10/12 08:22 AM
    core size: x86 vs IPFMichael S2004/10/12 10:53 AM
    K8 core size 52mm^2IlleglWpns2004/10/12 12:15 PM
    core size: x86 vs IPFPaul DeMone2004/10/12 01:10 PM
  New Silicon Insider ArticleJS2004/10/13 02:42 AM
  New Silicon Insider Articlemas2004/10/16 09:07 AM
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  Do I see a flaw here?IntelUser20002004/10/27 05:43 PM
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      Frequency is different for startersIntelUser2004/10/27 06:28 PM
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