Systems and methods that may be implemented to decrease power consumption levels of a first processing device (e.g., such as a CPU) based on monitored operating temperature of a second and different processing device (e.g., such as a discrete GPU) in a shared multiple-processor cooling resource environment of an information handling system architecture. The first processing device power consumption levels may be so controlled such that the operating temperature of the second processing device does not reach a temperature at which the second processing device is throttled.