https://www.tomshardware.com/news/amd-epyc-radeon-frontier-exascale-supercomputer,39275.html
AMD announced today that it had been selected to power Frontier, which is set to be the world's fastest exascale-class supercomputer when it comes online in 2021. . . The new Frontier supercomputer is expected to deliver a leading 1.5 exaflops of performance powered by next-generation variants of AMD's EPYC processors and Radeon Instinct GPUs.
AMD didn't reveal which specific generation of its GPUs and CPUs will power the system, although CEO Lisa Su did announce that both components are customized for the deployment.
AMD's EPYC processor has been optimized with support for new instructions that provide optimal performance in AI and supercomputing workloads, with Su saying, "it is a future version of our Zen architecture. So think of it as beyond..what we put into Rome."