NVIDIA upgrades Vera Rubin HBM4 bandwidth by 10% in order to stay ahead of AMD Instinct MI455X
TweakTown | 22.01.2026 12:11TL;DR: NVIDIA updated its Vera Rubin NVL72 AI server at CES 2026, boosting HBM4 memory bandwidth by 10% to 22.2TB/sec, surpassing AMD's Instinct MI455X. This enhancement, driven by competitive pressure, leverages faster 8-Hi HBM4 stacks to deliver superior AI acceleration performance.
