POWER MANAGEMENT FOR AN INTEGRATED GRAPHICS DEVICE

摘要

In one embodiment of the invention, an integrated device is described that employs a mechanism to control power consumption of a graphics memory controller hub (GMCH) (140) through both voltage and frequency adjustment of clock signal received from a clock generator (120). The GMCH (140) comprises a graphics core (200) and a circuit (235) to alter operational behavior, such as the frequency of a render clock signal (270) supplied to the graphics core (200). The circuit (235) is adapted to monitor idleness of the graphics core (200) and reduce a frequency level of the render clock (270) signal if the idleness exceeds a determined percentage of time.