The Definitive Guide toAI Data Centers
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GuideGlossarySuperNIC

SuperNIC

An AI-fabric network adapter built to spray packets across paths and reorder them in silicon; its rate is quoted per direction, so normalize before comparing it with bidirectional scale-up figures.

Also written as: SuperNICs

Current numbers

up to 1.6 Tb/sNVIDIA ConnectX-9 SuperNIC bandwidth (Rubin generation) — double ConnectX-8's 800 Gb/s; BlueField-4 (integrates a CX-9) ships at 800 Gb/s, double BlueField-3as of 2026 (announced) · register ↗
1 per GPUback-end SuperNIC provisioning (8×400G/800G per 8-GPU server = 3.2–6.4 Tb/s/node) + a separate front-end/storage NICas of 2025 · register ↗

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