CPU Clockspeed – it is the speed of the processor, whether the processor is single, double, quad or octa core, it always has a core speed. The core speed(in mhz or ghz) determines how fast the device will run. Higher is the clock speed, better is the performance, but lower is the battery life and more is the heat radiation.
If a device which has it’s processor clocked at 1.3 Ghz by default and one clocks it down to 1.2 Ghz or lower, the process is call underclocking.
Advantages- Underclocking can greatly effect your device’s battery life. As mentioned, underclocking is only helpful if you’re not a game freak and don’t use your device that much. In that scenario you should probably underclock your device and restrict it’s CPU to a suitable low speed.
Disadvantages- Firstly, your device performance will be a lot slower. Then, underclocking your device to the minimum lowest speed can result in sending the device to sleep mode. In that case you’ll have to pull the battery and put it back and then turn it on. So always restrict it to a suitable speed.
If a device which has it’s processor clocked at 1.3 Ghz by default and one clocks it down to 1.4 Ghz or higher, the process is call overclocking.
Advantages- As the purpose of a CPU is to perform tasks on your Android device, higher is the CPU, faster it will perform the tasks and less will be the chances of lag. Overclocking is mostly useful on old devices having less CPU clockspeed. If you wish to play 3D/HD games or you want to run the games / apps lag free you may Overclock your device’s CPU and it will work like a new device with higher clockspeed.
Disadvantages- Overclocking your Android device will directly affect the battery life and will result in battery drainage. More burden you put on your CPU more battery it will consume. This can be tested only upon Overclocking an Android device that how much it battery it eats, in case your device is not able to hand Overclocking it is recommended to plug in a wall charger when you open an app that wakes up the CPU.
Is changing Clockspeed Safe?
Yes it is safe. But still we highly recommend you to overclock your Android device at your own risk.
Android GPU clocking:
Just like the CPU, Android GPU can also be clocked differently according to your preference, whether you want performance or battery life.
How to Underclock / Overclock CPU on Android:
-YOU HAVE TO ROOT YOUR DEVICE
-YOU NEED TO HAVE A KERNEL WHICH SUPPORTS OVERCLOCKING
-YOU NEED TO BACKUP ALL YOUR DATA
Warning: The process involved in Underclocking or Overclocking your device’s CPU or GPU are always custom and the cellphone manufacturers or Google is not responsible for these processes. Make sure that what you’re doing, you consider yourself responsible for that and you’re doing it at your own risk. In case of any mishap / damage we may not be held responsible. It is highly recommended not to proceed if you don’t have any idea about such custom process.
How to do it:
– Download an app like SetCPU
– Grant the app permission from SuperSu
– Set the clock speed of the processor(Underclock/Overclock)
– Select governor Ondemand
– Hit enter!
If your device behaves well, you have successfully Underclocked/Overclocked your device! Now, you can set the settings on boot, to make it permanent.