NVIDIA Proposes 800 VDC Power Architecture for AI Data Centers

Summary

NVIDIA has published guidance on adopting 800 volt direct current (VDC) power distribution architecture for AI data centers. The shift from traditional 480 VAC or lower-voltage DC systems to 800 VDC is driven by the escalating power demands of GPU-dense AI training and inference clusters, where power delivery efficiency, cable weight, and copper usage become critical constraints at scale. The 800 VDC architecture promises significant improvements in power delivery efficiency by reducing convers