AMD Instinct MI350X product page - explicit Scale-up / Scale-out Infinity Fabric rows

FIRST AMD DOCUMENT LOCATED THAT LABELS THE TWO PATHS SEPARATELY in the board table. Rows verbatim: 'Bus Type: PCIe(R) 5.0 x16', 'Infinity Fabric(TM) Links: 7', 'Peak Infinity Fabric(TM) Link Bandwidth: 153 GB/s', 'Scale-out AMD Infinity Fabric(TM) Links (Per GPU): 1', 'Scale-up (Peak) AMD Infinity Fabric(TM) Link Bandwidth: 153 GB/s', 'Scale-out (Peak) AMD Infinity Fabric(TM) Link Bandwidth: 128 GB/s'. This is the decisive disambiguation for the trap that '7 IF links @ 153 GB/s' is a scale-up per-link figure rather than a host figure: AMD itself publishes a SEPARATE 128 GB/s under the 'Scale-out' label on the same page, and the 153 GB/s is repeated verbatim under the 'Scale-up' label. The 128 GB/s scale-out figure equals the PCIe Gen5 x16 host link's bidirectional rate, consistent with the CDNA 4 white paper's statement that one Infinity Fabric link is 'configured for PCIe Gen 5 to connect to I/O devices such as storage and networking'. Supported Technologies reads '4th Gen AMD Infinity Architecture', confirming AMD's own generation label for this fabric.