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HBM · Oct 15, 2026

Rubin HBM4 Mix May Remain Weighted Toward 12-Layer Stacks

Nvidia's Rubin accelerators are expected to use mostly 12-layer HBM4 even as suppliers are reportedly asked to expand 8-layer output. The reported shift in some configurations does not by itself indicate weaker overall HBM demand.

Price impact: 3Direction: upSource: DigiTimes Daily

Rubin is expected to rely primarily on 12-layer HBM4, while reports say Samsung Electronics and SK hynix have been asked to increase 8-layer supply. The source attributes continued demand support to manufacturing limits and constrained availability, with memory pricing expected to remain supported into 2027. These are forward-looking expectations rather than confirmed shipment figures.

NVIDIASamsung ElectronicsSK hynixHBM4HBM
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