Core sizes & performance

By: Hans de Vries (, March 14, 2016 5:36 am
Room: Moderated Discussions
David Kanter ( 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)
Apple Twister 16nm ~ 4.5mm2 without the big L2 cache
Arm A72 14/16nm: ~ 9mm2 for a complete quad core cluster + L2

=========== CORE PERFORMANCE ============

The Median base frequency for the new 2016 Intel 14nm high-core-count server chips
is about 2.2 GHz. Comparing with Skylake benchmarks known to have run at 2.2 GHz:

Intel's new servers:

High-core-count server versus tabled.

Skylake@2.2GHz versus Apple A9x (tablet)

High-core-count server versus phone.

Skylake@2.2GHz versus Apple A9 (phone power budget)

Skylake@2.2GHz versus Mediatek Arm A72, 20nm TSMC (phone power budget)

Skylake@2.2GHz versus Qualcomm Kryo, 14nm Samsung/GF (phone power budget)

Skylake@2.2GHz versus Samsung Mongoose, 14nm Samsung/GF (phone power budget)

(As usual: real man look at sub benches)

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TopicPosted ByDate
X-Gene 3 power enelopeRonald Maas2016/03/07 10:23 PM
  X-Gene 3 power enelopeDavid Kanter2016/03/08 09:50 PM
    X-Gene 3 power enelopecanon2016/03/09 09:32 AM
      X-Gene 3 power enelopeAlberto2016/03/09 03:38 PM
    Nobody wnats low performance server processors?Paul A. Clayton2016/03/09 03:22 PM
      Nobody wnats low performance server processors?Ricardo B2016/03/09 05:05 PM
        Nobody wants low performance server processors?Doug S2016/03/10 09:03 AM
          Nobody wants low performance server processors?Ricardo B2016/03/10 10:35 AM
            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
                bad size comparison between Apple A9 and skylake coresMaynard Handley2016/03/13 02:39 PM
                  bad size comparison between Apple A9 and skylake coresDoug S2016/03/13 06:10 PM
                  Comparing A9 and SkylakeDavid Kanter2016/03/13 06:15 PM
                    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
                          Core sizes & performanceDavid Kanter2016/03/15 06:59 PM
                            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
            Common wisdom??wumpus2016/03/10 01:32 PM
        Nobody wnats low performance server processors?juanrga2016/03/12 12:43 PM
      Nobody wnats low performance server processors?Linus Torvalds2016/03/10 11:52 AM
      Nobody wnats low performance server processors?David Kanter2016/03/11 10:38 AM
        Nobody wnats low performance server processors?MrJava2016/03/11 04:52 PM
        Nobody wnats low performance server processors?wumpus2016/03/12 10:15 AM
        Nobody wnats low performance server processors?nobody in particular2016/03/12 11:27 AM
          Nobody wnats low performance server processors?David Kanter2016/03/13 01:04 AM
  X-Gene 3 power enelopejuanrga2016/03/12 12:33 PM
    X-Gene 3 power enelopeRonald Maas2016/03/14 07:23 PM
      X-Gene 3 power enelopeGabriele Svelto2016/03/15 02:37 AM
        X-Gene 3 power enelopecanon2016/03/15 10:30 AM
        X-Gene 3 power enelopeMichael S2016/03/15 10:47 AM
          X-Gene 3 power enelopecanon2016/03/15 12:03 PM
        X-Gene 3 power enelopeRonald Maas2016/03/15 07:39 PM
      X-Gene 3 power enelopedmcq2016/03/16 07:28 AM
        X-Gene 3 power enelopeanon2016/03/17 07:44 PM
          X-Gene 3 power enelopeRonald Maas2016/03/22 07:49 AM
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