AMD packs 72 Instinct GPUs and 31TB of HBM4 into one Helios rack
The rack-scale system combines more than 18,000 CDNA 5 compute units with 4,600 Zen 6 CPU cores for large AI workloads.
TLDR
AMD's Helios rack-scale system links 72 Instinct MI455X accelerators into one compute domain. The company lists more than 18,000 CDNA 5 GPU compute units, 4,600 Zen 6 CPU cores and 31TB of HBM4 memory in a single rack. Each MI455X provides 432GB of HBM4 and up to 23.3TB/s of memory bandwidth, while an all-to-all UALoE fabric connects the GPUs in one hop. These are AMD's architecture specifications and positioning, not independent performance results.
AMD packs 72 Instinct GPUs and 31TB of HBM4 into one Helios rack
The rack-scale system combines more than 18,000 CDNA 5 compute units with 4,600 Zen 6 CPU cores for large AI workloads.
TLDR
AMD's Helios rack-scale system links 72 Instinct MI455X accelerators into one compute domain. The company lists more than 18,000 CDNA 5 GPU compute units, 4,600 Zen 6 CPU cores and 31TB of HBM4 memory in a single rack. Each MI455X provides 432GB of HBM4 and up to 23.3TB/s of memory bandwidth, while an all-to-all UALoE fabric connects the GPUs in one hop. These are AMD's architecture specifications and positioning, not independent performance results.
