NVIDIA Rubin
The 2026 architecture: HBM4, the Vera CPU, and NVL144 racks.
You're looking at a chip record: what this processor is, its key specs, who designs, manufactures and supplies its parts, and where it gets used.
Rubin is NVIDIA's next platform, named for astronomer Vera Rubin and announced on the annual-cadence roadmap at GTC 2025. Disclosed targets: two reticle-size dies, 288 GB of HBM4, roughly 50 dense PFLOPS of FP4 per package, and Vera Rubin NVL144 racks in the second half of 2026, with a four-die Rubin Ultra and ~600 kW NVL576 racks targeted for 2027. All figures are announced targets, not shipping specs.
Specifications & key facts
Each figure is labeled by basis: vendor spec, vendor claim, reported, estimate, or official. "Not publicly disclosed" means exactly that — we never invent values.
Overview
Manufacturing
Memory
Compute
Physical
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Sources
NVIDIA GTC 2025 keynote roadmap ↗
Record reviewed as of 2026-08-31 — see Methodology.