The Definitive Guide toAI Data Centers
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GuideGlossaryHGX

HGX

NVIDIA's baseboard reference platform integrating 8 GPUs with NVLink, the building block for many AI servers.

Current numbers

8 - 72 - 576scale-up (NVLink) domain size: HGX node, NVL72 rack, announced Rubin Ultra Kyberas of 2026 · register ↗
~2x / ~2.5xtraining / inference advantage HGX B200 retains over H200 with confidential computing fully enabledas of 2025 · register ↗

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