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Comment by robocat

4 days ago

> CCD

Core Complex Die - an AMD term for a chiplet that contains the CPU cores and cache. It connects to an IOD (I/O die) that does memory, PCIe etc (≈southbridge?).

Aside: CCX is Core Complex - see Figure 1 of https://www.amd.com/content/dam/amd/en/documents/products/ep...

For any other older fogeys that CCD means something different.

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robocat

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kvemkon  4 days ago

> memory, PCIe etc (≈southbridge?)

northbridge

  • DiabloD3  3 days ago

    To further expand on this, "southbridge" is what we now call a chipset expander (or 50 other company or product line specific names).

    Its a switch that has a bunch of unified PHYs that can do many different tasks (non-primary PCI-E lanes, SATA ports, USB ports, etc), leveraging shared hardware to reduce silicon footprint while increasing utility, and connects to PCI-E lanes on the CPU.