Why it matters

GB200 is Blackwell training platform. NVL72 is frontier training system.

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The architecture

Grace CPU: 72 Arm Neoverse cores.

2x B200 via NVLink-C2C.

NVL72 rack: 36 GB200 = 72 GPUs.

GB200 superchipGrace CPU72 Arm coresNVLink-C2C900 GB/s coherent2x B200Blackwell GPUsNVL72 rack ties 72 GPUs as one coherent domain via 5th-gen NVLink
GB200.
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How it works end to end

Coherent memory across CPU + GPUs.

NVLink switch fabric.

Rack-scale coherence enables large model parallelism.