Nvidia reportedly testing lower-memory Rubin Ultra amid HBM shortages

By PulseAugur Editorial · [1 sources] · 2026-08-10 16:47

Nvidia is reportedly exploring reduced memory configurations for its upcoming Rubin Ultra accelerator due to anticipated shortages of High Bandwidth Memory (HBM). Designs are being tested with as little as 192 GB of memory and may revert to using HBM4 instead of the previously announced HBM4E. These potential adjustments stem from manufacturing complexities and supply constraints impacting memory manufacturers like Micron, TSMC, and SK Hynix, with some reports indicating memory shortages could persist through 2030. AI

IMPACT Potential memory constraints could impact the rollout and performance of next-generation AI accelerators.

RANK_REASON Report on potential product configuration changes for a major GPU due to supply chain constraints. [lever_c_demoted from significant: ic=1 ai=0.7]

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Nvidia reportedly testing lower-memory Rubin Ultra amid HBM shortages

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Tom's Hardware TIER_1 English(EN) · Jake Roach · 2026-08-10 16:47

Nvidia reportedly testing lower memory configs of Rubin Ultra as memory shortage bites back — designs tested include as little as 192 GB and step back to HBM4

Nvidia is reportedly testing at least three Rubin Ultra configurations that pack as little as 192 GB of memory, as opposed to the 1 TB of HBM4E originally announced.

COVERAGE [1]

Nvidia reportedly testing lower memory configs of Rubin Ultra as memory shortage bites back — designs tested include as little as 192 GB and step back to HBM4

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