Nvidia Unveils Rubin Ultra With 1TB Memory
Nvidia on Monday demonstrated Rubin Ultra, a next-generation data-center GPU tray due in 2027 that combines four compute chiplets and 1TB of HBM4E memory, making it the industry's first AI accelerator with a terabyte of onboard memory. The company also unveiled Kyber, a vertical, liquid-cooled rack-scale platform that packs 144 Rubin Ultra GPU packages, upgrades NVLink to a 7th-generation switch, and promises at least four times the performance of current NVL72 systems.
Key Points
- 1Announces quad-chiplet Rubin Ultra with 1TB HBM4E memory, first terabyte AI accelerator
- 2Introduces Kyber rack with 144 vertical, liquid-cooled GPU packages to massively increase density
- 3Enables NVL144 systems delivering at least 4× performance over NVL72, shifting data-center configurations
Scoring Rationale
High novelty and large data-center impact, tempered by vendor demo speculation and limited technical disclosure about packaging and tapeout.
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