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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 23 fields comparable

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SpecEl CapitanOpenAI GPT-5
AcceleratorAMD Instinct MI300A (APU)—
Codex Synergy Precision Bonus—12
Cores11,340,000—
CPUAMD 4th Gen EPYC 24C 1.8GHz—
Gpt5 Context Window Tokens K—400
Gpt5 Input PER 1M USD—1.25
Gpt5 Output PER 1M USD—10
Gpt5 Snapshot—gpt-5-2025-08-07
Gpt6 Astra Launch—2026-09-03
Hpcg Tflops17,406—
Installation Year2,024—
InterconnectHPE Slingshot-11—
LocationDOE/NNSA/Lawrence Livermore National Laboratory—
ManufacturerHPE—
ModelHPE Cray EX255a—
Power KW29,684.62—
Rmax Pflops1,809—
Rpeak Pflops2,821.1—
Top500 Jun2026 NO1LineShine (National Supercomputing Centre in Shenzhen, China)—
Top500 Rank Jun20262—
Top500 Rank Nov20241—
Top500 Rank Nov20251—
Version Major—5