Patent ID: 8037326

Claim:
A processor system, comprising: a processor having a plurality of cores situated on a semiconductor die; a voltage regulator module to provide voltages to the plurality of cores in the processor; at least one sensor to obtain information on at least one of the plurality of cores, the information including thermal condition of a core; at least one analog to digital converter to convert the information obtained by the sensor to a digital format; and a power controller, coupled to the voltage regulator module and situated on the semiconductor die, to provide control information to the voltage regulator module based at least in part on the digitized information obtained by the sensor; wherein the voltage regulator module varies at least one voltage of the voltages provided to the plurality of cores based at least in part on the control information provided by the power controller; wherein the power controller further determines that no changes of a voltage to a core is necessary if an actual output voltage to the core is substantially the same as a voltage expected by the core based on the control information.