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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 18 fields comparable

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SpecOpenAI GPT-5 CoreFrontier (OLCF-5)
AcceleratorAMD Instinct MI250X
Cabinets74
Codex Synergy Precision Bonus12
Context Window Tokens M2
Cores9,066,176
CPUAMD 3rd Gen EPYC 64C 2GHz
Installation Year2,021
InterconnectHPE Slingshot-11
LocationDOE/SC/Oak Ridge National Laboratory
ManufacturerHPE
ModelHPE Cray EX235a
Power KW24,607
Pricing Input PER 1M USD12
Pricing Output PER 1M USD60
Rmax Pflops1,353
Rpeak Pflops2,055.72
Top500 Rank Nov20252
Version Major5
Compare · OpenAI GPT-5 Core vs Frontier (OLCF-5) · MadCoolStuff