dedicated GPU or APU for display?

[Bruh1]

Hi.

this might be a bit of a stupid question.

I got a "gaming" laptop a couple of months ago that has an APU and a dedicated GPU and I realized the display is running on the APU , I know in games the graphics are running on the dedicated GPU.

So my question is what does switching the display to the dedicated GPU do? cause I noticed windows switched to the dedicated GPU while i was updating my display driver for the APU. Would it help performance in any way? 

[Electronics Wizardy]

THis is probably using something similar to optimus. So the display is only connected to the igpu, and the dgpu only turns of if needed to save power. Most laptops with dgpus have been doing this for the last 8+ years now. 

[Bruh1]

2 minutes ago, Electronics Wizardy said:

THis is probably using something similar to optimus. So the display is only connected to the igpu, and the dgpu only turns of if needed to save power. Most laptops with dgpus have been doing this for the last 8+ years now. 

Aaah I see , interesting , I'm also asking because im having software issues with the display drivers with the APU cause its AMD . black screen flickering sometimes idk why , when I pause videos and go to another tap then I come back to them the screen turns green on the video for some reason till I unpause them. I tried updating the driver and it does fix the issues but my God for some reason it hits performance heavily. I just feel the laptop becoming so slower I have no clue why....