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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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SpecOpenAI GPT-5El Capitan
Accelerator—AMD Instinct MI300A (APU)
Codex Synergy Precision Bonus12—
Cores—11,340,000
CPU—AMD 4th Gen EPYC 24C 1.8GHz
Gpt5 Context Window Tokens K400—
Gpt5 Input PER 1M USD1.25—
Gpt5 Output PER 1M USD10—
Gpt5 Snapshotgpt-5-2025-08-07—
Gpt6 Astra Launch2026-09-03—
Hpcg Tflops—17,406
Installation Year—2,024
Interconnect—HPE Slingshot-11
Location—DOE/NNSA/Lawrence Livermore National Laboratory
Manufacturer—HPE
Model—HPE Cray EX255a
Power KW—29,684.62
Rmax Pflops—1,809
Rpeak Pflops—2,821.1
Top500 Jun2026 NO1—LineShine (National Supercomputing Centre in Shenzhen, China)
Top500 Rank Jun2026—2
Top500 Rank Nov2024—1
Top500 Rank Nov2025—1
Version Major5—