https://wccftech.com/all-amd-powered-frontier-supercomputer-creates-history-worlds-first-true-exascale-machine-with-1-1-exaflops-of-horsepower-thanks-to-epyc-cpus-instinct-gpus/

The all AMD-Powered Frontier supercomputer has created history, becoming the world's first system to be a true exascale machine thanks to EPYC CPUs & Instinct GPUs.

ORNL's Frontier supercomputer has been designed from the ground up with AMD's 3rd Gen EPYC Trento CPUs and Instinct MI250X GPU accelerators. We already got to see a preview of the system through the 'Crusher' system earlier this year but now, with Frontier fully activated, we can talk of the real thing.