Dual monitor lag HD 4600 / HD 7870

Trinedy

Reputable
Feb 13, 2015
2
0
4,510
Good afternoon!
I'm having a problem with my setup. I'm using my processors integrated graphics, intel HD 4600 to run my 2nd monitor, it's mainly used for streams while gaming. My main monitor uses HD 7870 Gigabyte OC WF version with 2gb. The problem is this:

When I open any game on my main monitor and a stream / video on my 2nd monitor the FPS on the game drops significally. Sometimes from 150 fps to 15 fps. (SMITE) I'm really confused how this is possible since both screens are using different GPU. Anyone had similiar problems or maybe you know how this works and have a solution? Thank you in advance!

EDIT: using Windows 7 64 bit Ultimate. Processor is i7-4770k. All drivers are updated and i've downloaded the drivers for hd 4600. 8GB ram.