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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 26 fields comparable

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SpecFrontier (OLCF-5)Alibaba Qwen2.5-72B-Instruct (Q4 quant)
AcceleratorAMD Instinct MI250X—
Cabinets74—
Context Window Tokens K—128
Cores9,066,176—
CPUAMD 3rd Gen EPYC 64C 2GHz—
Dual Card Count—2
Dual Card Vram GB—24
GPT Version—5
Installation Year2,021—
InterconnectHPE Slingshot-11—
LocationDOE/SC/Oak Ridge National Laboratory—
ManufacturerHPE—
ModelHPE Cray EX235a—
Parameter Count B—72
Power KW24,607—
Qwen Version—3
Qwen25 72B Instruct—Qwen2.5-72B-Instruct
Qwen25 Version—2.5
Qwen3 Largest Dense Checkpoint B—32
Rmax Pflops1,353—
Rpeak Pflops2,055.72—
RTX 5090 Pairing Vram GB—32
Status Checked—2026-09-24
Top500 Rank Jun20263—
Top500 Rank Nov20252—
Vram Required GB—44