Question / Help OBS causing lag in game. Bad performance drops

[trashtalker420]

Hey guys I just recently bought a pc and thought about getting into streaming. Everything I've read so far says I should be able to stream relatively easily on my machine but for some reason I have absolutely horrible drops in performance when I stream. Just looking for suggestions or answers on how to set everything up better. I've also tried using NDI with my laptop to try to take the weight off the CPU, but even though I hardwired both into Xfinity router at 300gbps I begin to get even worse frames. Currently have stream at 4500 bitrate, playing at 1440p 165hz but downscaling to 720p at 60hz. Just looking for answers or anything I could try.

PC Components:
CPU: I7-8700k overclocked to 5.0 GHz
GPU: EVGA 1080ti sc2
Monitor: S2417DG with G-Sync technology
PSU: EVGA 650W
RAM: 16gb corsair vengeance at 2133hz
SSD: 256gb wd black with OS, OBS, and 1 game installed has 100 gb of space left
HDD: 1Tb barracuda
Mouse:Steelseries 310
Headset: Steelseries arctis pro with gamedac
Keyboard: Corsair K68

 

[mrkunya]

I have the same issue. On the stream PC i have no problem, but on the gaming pc the game is so laggy. If i stop the NDI it runs perfectly again.

AMD 2600x
Nvidia gtx 1060 6GB

 

[Bitbatgaming]

I have the same issue. On the stream PC i have no problem, but on the gaming pc the game is so laggy. If i stop the NDI it runs perfectly again.

AMD 2600x
Nvidia gtx 1060 6GB

This is exactly my problem.

 

[Narcogen]

Where and when are you downscaling? A 1440p60 NDI feed would very likely strain both PCs and be unnecessary if you're intending to stream 720p at 4500.

Suggest doing a session and then uploading a log.

Please post a log with your issue! Here's how...