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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.

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SpecAlibaba Qwen2.5-72B-Instruct (Q4 quant)Frontier (OLCF-5)
Accelerator—AMD Instinct MI250X
Cabinets—74
Context Window Tokens K128—
Cores—9,066,176
CPU—AMD 3rd Gen EPYC 64C 2GHz
Dual Card Count2—
Dual Card Vram GB24—
GPT Version5—
Installation Year—2,021
Interconnect—HPE Slingshot-11
Location—DOE/SC/Oak Ridge National Laboratory
Manufacturer—HPE
Model—HPE Cray EX235a
Parameter Count B72—
Power KW—24,607
Qwen Version3—
Qwen25 72B InstructQwen2.5-72B-Instruct—
Qwen25 Version2.5—
Qwen3 Largest Dense Checkpoint B32—
Rmax Pflops—1,353
Rpeak Pflops—2,055.72
RTX 5090 Pairing Vram GB32—
Status Checked2026-09-24—
Top500 Rank Jun2026—3
Top500 Rank Nov2025—2
Vram Required GB44—