Redfire75369’s avatarRedfire75369’s Twitter Archive—№ 3,168

  1. I'm looking at this again, and I don't see any dedicated DMI mesh tiles. Are they just using 8/16 of the PCIe lanes for DMI? That would explain Sapphire Rapids maxing out at 112 lanes, 8/16 of the remaining 16 lanes are downclocked and used for DMI with the Emmitsburg PCH. @phobiaphilia/1495025842988404736
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    1. …in reply to @Redfire75369
      If you look at the top left on this wafer die shot, you can see 8 PHYs, that's almost certainly the DMI.
      /img/-oDH2LDCu1.jpeg
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