Using I-GPU for basics and GPU for software and gaming

[vantila]

Hey everyone

Hope everyones having a good day. So I have an intel i-gpu. I said to myself, I might as well use it. What are the pros and cons of connecting monitor via the motherboard instead of directly going from the gpu?

Now the obvious advantage would be having a purpouse for the i-gpu and also quicksync both for editing and streaming content.

Would it make a good reduction for D-GPU power and thermals when doing basic browsing and stuff? I reckon maybe DGPU consumes 5w less power and stays 2 degrees cooler unused. It uses 2% utilisation with 20-ish watt and 40~ degree C as is now.

Rerouting lets say a game render or software like Blender from DGPU->IGPU-> Monitor could introduce input lag? I don't know and I'm too lazy to do benchmarks that's why I'm writing a techpowerup forum post instead

Techpowerup forums are full of tech-savy people who knows a lot more about all this than me so I'm curious what do you think and do with your igpu.

 

[jarablue]

I know in some games you can pick the video card you want to use to you don't need to play the game on the igpu.

 

[GerKNG]

i can only recommend to disable it.
you will not gain anything while you have two sets of drivers on your system.
i benched some games a couple years ago with the intel IGP enabled and the sheer existence of it with a second monitor plugged into it made a lot of games ran worse (sometimes a lot)

 

[LabRat 891]

I disdain Windows11, but... The ability/feature you seek is integrated.

How To Set the Default GPU for Applications and Games

Instructions on how to force apps or games to use dedicated graphics or integrated graphics.

www.intel.com

I haven't had luck doing the same with Win10.

 

[Ware]

Rerouting lets say a game render or software like Blender from DGPU->IGPU-> Monitor could introduce input lag?

Back in the days of 2nd and 3rd gen Intel, we had "Lucid Virtu". It did something like this.
It introduces an extra step to copy each frame from the dGPU to iGPU with it's slower "shared" memory, so there is always some added latency.
Modern GPU power consumption should be fine when just browsing, maybe even silent. Just use your real GPU if you have one.