NVIDIA Unveils Rubin: Six-Chip AI Supercomputer

NVIDIA formally announced its next-generation AI platform, Rubin, on April 11. The system combines the Vera CPU, Rubin GPU, NVLink 6 switch fabric, ConnectX-9 SuperNIC, BlueField-4 DPU, and Spectrum-6 Ethernet—claiming 10x inference token cost reduction versus Blackwell and 4x training efficiency gains on mixture-of-experts workloads. The Rubin GPU itself features 336 billion transistors, 50 PFLOPS per GPU, and 288 GB of HBM4 memory, specifications finalized at April's GTC conference.