AMD’s Instinct MI455X accelerator uses the CDNA 5 architecture, underpinning its next-generation servers and Helios rack-scale system.

AMD’s Instinct MI455X is an accelerator based on the company’s CDNA 5 architecture. ServeTheHome described CDNA 5 as marking the next era of AMD’s Instinct product line.

The accelerator is positioned as the backbone of AMD’s next-generation AI server offerings. This identifies the MI455X as an accelerator within server systems, rather than as a central processing unit or a complete server by itself.

The architecture also underpins AMD’s Helios rack-scale system. The cited source characterizes Helios as a large rack-scale system but does not provide deployment quantities, customer contracts, pricing, or availability figures in the supplied description.