I am just wondering, because usually mobile GPU's are quite locked down when it comes to user control for stuff such as voltage. Here is a picture.
I am not complaining though hehe.
So actually it reduces heat and power consumption. Stock voltage is 1225 mV and as you can see I was able to undervolt it to 1155 mV and overclock it to 1050 MHz.
I am using ASUS gpu tweak because it is he only overclocking tool that let's me do this for whatever reason. Even weirder is that to overclock the memory I have to use Sapphire trixx.