Skylake-SP area breakdown

By: David Kanter (, July 12, 2020 5:13 pm
Room: Moderated Discussions
I did some analysis a while back that might useful to share here.

8.0 mm2 SKL core
0.9 mm2 AVX512
2.0 mm2 1MB L2$
2.4 mm2 1.375MB L3$
0.4 mm2 Snoop filter
2.0 mm2 caching and home agent
2.2 mm2 FIVR, PLLs
0.4 mm2 Mystery block

18.0 mm2 Total SKL-SP tile

So AVX512 is about 5% of the tile area, the tiles are 72% of the total area of SKL-SP.

If you removed AVX512 you'd save 28mm2 for the whole chip, which would let you add at most 2 tiles.

In that vein, it seems like a pretty reasonable trade-off.

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Skylake-SP area breakdownDavid Kanter2020/07/12 05:13 PM
  Skylake-SP area breakdownanon22020/07/12 06:01 PM
    Skylake-SP area breakdownTravis Downs2020/07/12 07:02 PM
      Skylake-SP area breakdownanon2020/07/12 07:44 PM
  Skylake-SP area breakdownTravis Downs2020/07/12 07:03 PM
    Skylake-SP area breakdownDavid Kanter2020/07/12 07:20 PM
      To elaborateDavid Kanter2020/07/12 07:22 PM
        To elaborateTravis Downs2020/07/13 06:03 AM
          To elaborateAnon2020/07/13 06:36 AM
            To elaborateAdrian2020/07/13 12:45 PM
              To elaborateAnon2020/07/13 01:06 PM
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        Mask costsDavid Kanter2020/07/14 07:13 AM
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          Alternatives ImplementationsDoug S2020/07/14 09:03 AM
          Alternatives ImplementationsMaynard Handley2020/07/14 09:12 AM
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