Frontier (OLCF-5)

Name: Frontier (OLCF-5)
Brand: HPE / AMD

Oak Ridge's exascale system — first to break the ExaFLOPS barrier on HPL; AMD MI250X plus EPYC.

Stylized line drawing of the Frontier (OLCF-5)

Frontier is the HPE Cray EX235a system at Oak Ridge National Laboratory. With 9,066,176 cores across AMD 3rd Gen EPYC CPUs and AMD Instinct MI250X GPUs on a Slingshot-11 fabric, it sustains 1,353 PFLOP/s on HPL and ranked No. 2 on the November 2025 TOP500.

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Specs

compute: AMD EPYC + Instinct MI250X

First system to break the exaFLOPS HPL barrier. AMD-built; the institutional answer to NVIDIA-dominated supercomputing.