Answer:
This is a good idea to reduce the processor clock speed to reduce the mobile phone power consumption which increases battery life.
Explanation:
The purpose of reducing the processor clock speed is decreasing the consumption of electric power. Pentium 4 processor normally clocked at 3.4 GHz but it can reduce to 2 GHz clock speed and works fine with reduced fan speeds. Of course, it will affect system performance but if your target is only extending of battery timing then you have to bear this loss. Laptops and smartphones have these types of settings for extending the timing of battery without being charged. Reducing clock speeds also known as processor under clocking where the timings of the asynchronous circuit are altered in order to lower the energy needs of devices. In under clocking, the speed of the processor has limits which also affect the speed of operations but may or may not make a device noticeably less able, depending on other hardware and desired use. In order to make machine more efficient the manufacturers can choose the option to limit the capability of a machine. Reduced instruction set computer (RISC) models can help manufacturers build devices that work on less power.
