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Spectrum-X Ethernet
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Networking
NVIDIA's answer to losing Ethernet: an AI-tuned Ethernet of its own.
You're looking at a technology record: a building block of AI hardware — what it does, who makes it, and which chips and systems use it.
Spectrum-X pairs NVIDIA's Spectrum switches with BlueField DPUs to deliver lossless, congestion-managed Ethernet approaching InfiniBand behavior — the fabric xAI chose for Colossus's 100,000+ GPUs. It lets NVIDIA fight for the Ethernet-preferring hyperscale market rather than defend InfiniBand alone.
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Record reviewed as of 2026-01-15 — see Methodology.