Arm Goes to War In The Datacenter With “Ares” Designs

“In this case, the 64-core die is broken into four 16-core segments, and CCIX interconnects coming off the mesh are used to link the four chiplets into one logical processor. By the way, more CCIX links can also be added over the PCI-Express transport to create NUMA interconnects between sockets. (AMD’s Infinity Fabric on the Epyc X86 server processors similarly use a quad chiplet design and tweaked PCI-Express interconnects to create multi-chip modules for a socket and to link multiple sockets together.) Our guess is that the Ares architecture has enough PCI-Express bandwidth to handle some peripherals and maybe do four-socket NUMA boxes. This would cover the needs of the vast majority of the systems market.”