> There, AMD still held the advantage because their HyperTransport point-to-point interconnect let them scale to large multi-socket configurations. Intel still primarily used a Front-Side Bus (FSB) architecture to connect CPUs to memory and each other, and a shared bus does not scale well to high core counts.

Notably AMD's new chips are a bunch of core-complexes chiplets (CCDs) around a shared memory controller (IOD). Still, scales up per socket, which is the killer.