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MCS · Rigs · Compare

Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

0 of 29 fields comparable

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SpecAMD Instinct MI325XFrontier (OLCF-5)
Accelerator—AMD Instinct MI250X
Bf16 Matrix Tflops Dense1,307.4—
Cabinets—74
Compute Units304—
Cores—9,066,176
CPU—AMD 3rd Gen EPYC 64C 2GHz
Form factorOAM—
Fp16 Matrix Tflops Dense1,307.4—
Fp32 Vector Tflops163.4—
Fp64 Matrix Tflops163.4—
FP8 Matrix Tflops Dense2,614.9—
FP8 Matrix Tflops Sparse5,229.8—
HBM (GB)256—
HBM TypeHBM3E—
Installation Year—2,021
INT8 TOPS (dense)2,614.9—
Interconnect—HPE Slingshot-11
Location—DOE/SC/Oak Ridge National Laboratory
Manufacturer—HPE
Memory bandwidth (TB/s)6—
Model—HPE Cray EX235a
Pcie GEN5—
Power KW—24,607
Rmax Pflops—1,353
Rpeak Pflops—2,055.72
TBP Watts1,000—
Tf32 Matrix Tflops Dense653.7—
Top500 Rank Jun2026—3
Top500 Rank Nov2025—2