[Nvidia Rubin Ultra Chip Reportedly to Use 8-Layer HBM] According to industry sources, Nvidia (NVDA.O) is considering reducing the high-bandwidth memory (HBM) layer stack of its next-generation Rubin Ultra AI accelerator from the previous 12 layers t

2026-09-10

[Nvidia Rubin Ultra Chip Reportedly to Use 8-Layer HBM] According to industry sources, Nvidia (NVDA.O) is considering reducing the high-bandwidth memory (HBM) layer stack of its next-generation Rubin Ultra AI accelerator from the previous 12 layers to 8 layers. With storage costs rising, Nvidia is placing greater emphasis on cost per unit bandwidth and the overall system economy.