VRM · Voltage Regulator Module
Power-electronics stage that steps board voltage down to the low voltage a GPU or CPU core actually needs.
On-board converter delivering the precise low voltage a processor core requires from the board supply.
Also written as: Voltage Regulator Module
Current numbers
~87% SST/800 VDC (analyst model) vs ~82% AC (guide fixture)Illustrative utility-to-VRM efficiency cases: SemiAnalysis May 2026 SST/800 VDC model versus the guide's assumed AC fixture