Systems and methods of power management provide for using transient running average power limits to enhance device power consumption and platform power delivery. A transient running average power limit can be transmitted to a device based on system device load demand and/or a characteristic of a power delivery system associated with the device. The characteristic can convey information such as the power mode, the load current demand and corresponding efficiency of the power delivery system. In one embodiment, the transient running average power limit includes a transient power level and an adjustable time window, where the adjustable time window defines the amount of time for maintaining the transient power consumption of the device at or below the transient power level.