Does Forcing GPU Rendering Affect Battery Life? I'm currently unsure about this and haven't found anything concrete while searching on the internet. I just recently got my first Android phone a week ago and started tinkering with the developer settings, I am currently using a OnePlus 3T with Android Nougat. Any answers will be appreciated. 

TLDR: Does enabling force GPU Rendering affect battery life on the OnePlus 3T with Android Nougat?
Almost all updated apps have GPU Rendering coded into the build. The reason you have an option under developer settings is simply to test the feature as a developer.

Unless you are ok with the minimal performance increase at the cost of battery life keep it off, if an app can utilize the function it will.