NVIDIA trims Vera Rubin specs to balance HBM4 supply
10/26/2026 — 10/26, 17:18·2 sources (all)·2 reports (all)
Key takeaways
- According to TechPowerUp and cnBeta, NVIDIA has revised specs for its next-generation Vera Rubin AI compute platform: HBM4 speed dropped fro…
Background & analysis
According to a TechPowerUp report published on October 26, 2026, NVIDIA has updated its product specification sheet and lowered the memory and interconnect targets for its Vera Rubin product line. The first change concerns HBM4 memory, with the speed target reduced from a previously specified 11.7 Gbps per pin to 9.6 Gbps per pin. The second change appears in the Vera Rubin NVL72 rack-scale solution, where total memory bandwidth has been cut from the previously advertised 1,580 TB/s down to 1,400 TB/s. The report does not state why these specification targets were reduced, and no further changes to the Vera Rubin line have been reported since.
AI-generated from 1 reports · updated 2 hours ago
Latest turnAccording to cnBeta, Nvidia has adjusted hardware specifications for its next-gen Vera Rubin AI computing platform, lowering HBM4 and NVLink bandwidths while increasing scale-out network bandwidth to balance mass production, supply limits, and costs.
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According to cnBeta, Nvidia has adjusted hardware specifications for its next-gen Vera Rubin AI computing platform, lowering HBM4 and NVLink bandwidths while increasing scale-out network bandwidth to balance mass production, supply limits, and costs.
cnBetaAI score 56According to TechPowerUp, NVIDIA has revised its Vera Rubin spec sheet downward: HBM4 memory speed drops from 11.7 Gbps to 9.6 Gbps per pin, and total memory bandwidth for an NVL72 rack falls from 1,580 TB/s to 1,400 TB/s. The changes cover both memory and interconnect fabric targets.
TechPowerUpAI score 52
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