GPU catalogue · AMD

AMD Instinct MI455X

AMD's flagship MI400 part, built for Helios racks.

432 GB GPU memory GPU

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AMD Instinct MI455X

Specifications

AMD Instinct MI455X: public facts

Good for: Frontier-scale inference and training.

Machine	AMD Instinct MI455X
Memory	432 GB HBM4
Architecture	CDNA 5
Status	Announced, expected 2026-H2

Models

Which models fit the AMD Instinct MI455X

language models · image models · video models · embedding models.

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