Morning Edition · Thursday, August 27, 2026Published at 2:20 AM EDT · New York

Nvidia Opens Its Custom Memory Design to Rival Accelerators Through NVLink Fusion

NVHBM moves the memory controller into the high-bandwidth memory stack, claiming 30 percent more bandwidth and 15 percent lower memory power than standard HBM4E, with Amazon's Annapurna Labs as the first partner.

Nvidia extended NVLink Fusion with NVHBM, a custom high-bandwidth memory design it will make available to partners building their own accelerators. The change is structural: instead of putting the memory controller on the compute die, Nvidi…