NVIDIA launches Spectrum-6 as a 102.4 Tbps Ethernet switch for gigascale AI factories
NVIDIA Blog · rss · 2026-07-21
- NVIDIA says AI has entered the gigascale era, where networking becomes a key multiplier for token generation in factories running hundreds of thousands of GPUs and CPUs.
- Spectrum-6 is a 102.4 Tbps Ethernet switch system, delivering 2x the capacity of the previous generation and launching as part of the Vera Rubin platform.
- The system anchors the next-gen Spectrum-X Ethernet stack, combining Spectrum-6, ConnectX-9 SuperNICs, software, and liquid-cooled options to improve bandwidth, resilience, and efficiency at scale.
- CoreWeave, Microsoft, Nebius, SpaceXAI, and Tesla are among the first expected adopters; NVIDIA says Spectrum-X can deliver up to 1.6x better AI networking performance and up to 95% efficiency in deployments above 100,000 GPUs.
More from Infra
- Cloud capacity crisis is now an AI architecture problem, argues new newsletter — DavidLinthicum · 2026-10-26
- SpaceX files $40B GPU financing commitment with Apollo, already at 1.7GW — XFreeze · 2026-10-26
- Meta plans to raise up to $95B to fund massive AI expansion — Polymarket · 2026-10-26
- Nebius CEO: Debt Markets Closed for Neoclouds Last Week, Leaning on Customer Advances — zephyr_z9 · 2026-10-26
- CoreWeave 5-year CDS spikes to ~1,100bps as market fears AI bubble starts as credit event — kimmonismus · 2026-10-26
- AI demand reshapes cloud computing: scarce capacity and long-term deals replace on-demand — DavidLinthicum · 2026-10-26