Nvidia launches Spectrum-6 switch with double bandwidth for Vera Rubin

Nvidia announced the Spectrum-6 switch for the Vera Rubin platform, offering 102.4 Tbps bandwidth—double the previous generation. The system is now in global hyperscale AI factories, with early adopters including CoreWeave, Microsoft, Nebius, SpaceXAI, and Tesla.

CoreWeave, Microsoft, and Nebius will first deploy Vera Rubin-based infrastructure with Spectrum-6 to expand access for developers, startups, and enterprises. CoreWeave's product network director said Spectrum-6 and liquid-cooled Spectrum-X Ethernet infrastructure will provide the bandwidth, resilience, and efficiency needed to train cutting-edge models and deploy inference faster.