Rubin GPU's dual-die design: NV-HBI interconnect estimated at 10 TB/s
cfregly · x · 2026-11-11
cfregly illustrates Rubin GPU's dual compute-die package: the two dies are connected by NV-HBI, with an estimated 10 TB/s bandwidth assuming Rubin matches Blackwell Ultra's published NV-HBI figure. Links to NVIDIA's PTX ISA docs.
Related event: Vera Rubin Megachip Architecture Explained(2 posts)→
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