Originally Posted by tni.andro
Undervolting doesn't make a difference in power consumption. The Snapdragon S4 has AVS (Adaptive Voltage Scaling).
The voltage you are setting is only an initial value, immediately after a frequency switch, AVS kicks in and auto-selects the optimal voltage. You don't get ANY power consumption benefit from undervolting, but you risk crashing the CPU during the brief period before AVS kicks in. (I've done power measurements.)
AVS appears to be always active and can't be disabled.
That thread is about a phone with Exynos CPU - very different thing.
Yes, the Snapdragon 600 CPU does have dynamic GPU and voltage. Since he is a noob, the thread that I linked was just to give some general information on frequency, scaling, under/overclocking, and stability testing. Learning how to undervolt can be transferable to another device in the future.
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