Introducing the AMD CDNA 2 Architecture (white paper)

AMD architecture white paper for CDNA2 (MI200). Table 1 gives the Scalability row of the MI210 / MI250 / MI250X comparison as 'Infinity Fabric Links: up to 3 / up to 6 / up to 8' and the xGMI Bridge Card Configuration row as 'Yes (Dual | Quad Hives) / NA / NA' - i.e. the bridge-card path is a PCIe-card-only mechanism, which is why the OAM parts carry the higher 8-link count. Uses xGMI explicitly in the node topology figures for MI210 dual and quad GPU hives built with direct-connect xGMI bridge boards.