Core sizes & performance

By: yellowhighlighter (noemail.delete@this.emails.com), March 15, 2016 9:30 pm
Room: Moderated Discussions
David Kanter (dkanter.delete@this.realworldtech.com) on March 15, 2016 6:59 pm wrote:
> VertexMaster (nope.delete@this.nope.com) on March 14, 2016 12:37 pm wrote:
> > David Kanter (dkanter.delete@this.realworldtech.com) on March 14, 2016 9:16 am wrote:
> > > Hans de Vries (nospam.delete@this.thanks.com) on March 14, 2016 5:36 am wrote:
> > > > David Kanter (dkanter.delete@this.realworldtech.com) on March 13, 2016 6:15 pm wrote:
> > > > >
> > > > > Honestly I think the comparison would be more constructive if someone had a breakdown
> > > > > of area for SKL and the Twister cores (e.g., actual L2 cache size, etc.). Things
> > > > > like VPro probably don't impact the core much. But TSX, etc. do.
> > > > >
> > > > > I think it's pretty clear that Apple's core is quite aggressive and fairly impressive. It
> > > > > doesn't have nearly the same range as Intel, but it's leagues better than other cores.
> > > > >
> > > > > David
> > > >
> > > > =============== CORE SIZES: =================
> > > >
> > > > Just a few rough estimates for now:
> > > >
> > > > Intel Skylake 14nm ~ 8.9mm2 without the big L3 cache slice (a lot bigger as Broadwell)
> > >
> > > My measurement is 8.5mm2, including about 0.8mm2 for the L2 cache and about 1.8mm2 for the AVX2 units.
> > >
> > > > Apple Twister 16nm ~ 4.5mm2 without the big L2 cache
> > >
> > > Any idea of the area of various sub-units?
> > >
> > > > Arm A72 14/16nm: ~ 9mm2 for a complete quad core cluster + L2
> > >
> > > Again, any idea of the area of the sub-units?
> > >
> > > DK
> >
> > ARM Press slides for A72
> >
> > Maybe we can ask Andrei@Anandtech to post the actual slide deck because the footnotes might be helpful.
> >
>
> That kind of information isn't particularly meaningful without frequency and power data.
> I'm much more interested in the data for a shipping part, not just a marketing slide.
>
> David
http://www.anandtech.com/show/9878/the-huawei-mate-8-review/3
8mm^2 for their A72 cluster.
about 3.7W for 4 cores at 2.3Ghz in a cluster, about 1.4W for 1 core than about 750-800mW for each added after.
currently for the lower clocks the voltage is as high as 30% over the target. At 2.3Ghz it is .955V
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            bad size comparison between Apple A9 and skylake coresHeikki Kultala2016/03/12 05:37 AM
              bad size comparison between Apple A9 and skylake coresAlberto2016/03/12 02:04 PM
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                  bad size comparison between Apple A9 and skylake coresDoug S2016/03/13 06:10 PM
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                    Core sizes & performanceHans de Vries2016/03/14 05:36 AM
                      Core sizes & performanceDavid Kanter2016/03/14 09:16 AM
                        Core sizes & performanceVertexMaster2016/03/14 12:37 PM
                          Core sizes & performancejuanrga2016/03/15 05:40 AM
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                            Core sizes & performanceyellowhighlighter2016/03/15 09:30 PM
                      Core sizes & performance: Zen & K12juanrga2016/03/15 05:54 AM
        Common wisdom??Paul A. Clayton2016/03/10 09:33 AM
          Common wisdom??Ricardo B2016/03/10 10:49 AM
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