Why it matters
GPU cluster planning is major capital decision. Understanding shapes efficient infrastructure.
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The architecture
Node: 8 GPUs typical, with matching CPU + RAM.
Network: InfiniBand for training, Ethernet for inference.
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How it works end to end
Node: 8 GPUs (H100 typical), 100-200 CPU cores, 1-2TB RAM, TBs NVMe.
InfiniBand: 400-800 Gbps for training.
Ethernet: 100-400 Gbps for inference clusters.
Cooling: liquid for dense (60+ kW/rack).