GPU upgrade [gtx 1080] now lags with OBS streaming.

[Zalgo]

So, I just upgraded from my r9 290 tri-x OC (4gb). it broke after years of service. But prior to that I have not had a single issue with FPS lag when streaming with OBS, even when running games that went above specs.

Now I "upgraded" to an Asus GTX 1080 Strix (8gb). All games run fine until I turn on OBS. I now get this weird type of intermitten fps lag that lasts for only a few seconds at a time at what seems like random times. The lag happens so fast that very rarely does the fps counter even catch it.

I've tried it with Overwatch (I run at all low for a smooth 144 fps for my monitor), and rainbow six siege, which I was able to run at high with no fps lag before but now I get it.

Is there maybe some type of setting that you need to change in OBS since I've changed my card from an AMD card to an Nvidia card? I'm not sure. All I know is from what I know about my PC, it is more than powerful enough to run 90% of things smoothly with OBS and did so with a weaker card. But again, this lag only happens when streaming with OBS.

here are my OBS settings:

http://i.imgur.com/xkouqd9.png http://i.imgur.com/F6nsc2Z.png

PC specs:

OS windows 7 64 bit.

RAM = 32gb ddr3

CPU = i7 5820k Haswell-E

GPU = asus GTX 1080 strix

 

[Blas]

As you have switched from an AMD card to an Nvidia one, there might be issues on the drivers side. I would try cleaning all the drivers you might have so far (both AMD and Nvidia) with DDU, then reinstalling the Nvidia ones. Follow this tutorial for DDU: http://www.tomshardware.co.uk/faq/id-2767677/clean-graphics-driver-install-windows.html

It is true that you have hardware that is plenty powerful, this shouldn't be happening because of the hardware, so it might be software related. Good luck!