What is power gated?

Power gating is a technique used in integrated circuits to reduce overall power consumption. It involves selectively turning off power to specific parts of the circuit when they are not in use, which can significantly reduce power consumption. Power gating can help extend battery life in mobile devices and reduce energy consumption in other types of electronic devices. The technique requires careful design and implementation to avoid negative effects such as increased delay and reduced performance. It is commonly used in modern processors, graphics chips, and other advanced integrated circuits.