Nvidia trims HBM4 bandwidth for Rubin platform to 19.2TB/s

Nvidia has reportedly adjusted the HBM4 memory spec for its Vera Rubin NVL72 platform, cutting bandwidth per GPU from 22TB/s to 19.2TB/s, a reduction of about 13%. The company has not officially confirmed the change.

• HBM4 bandwidth per GPU cut from 22TB/s to 19.2TB/s
• The reduction is about 13%
• The change affects the Vera Rubin NVL72 platform
• Nvidia has not officially confirmed the adjustment