Question / Help Turning on OBS without streaming causes games to lose a lot of fps

M

Mephz

New Member
Good evening forums,

I was hoping someone could help me with this issue I'm currently having with OBS that I did not have in the past.

I've been trying to stream Destiny 2 lately, but as soon as I start OBS and the preview of the game appears, I'm losing at least 40 fps in game, and the game seems to be stuttering a lot, I have a pretty good rig for gaming and streaming so I'm still trying to understand what's actually causing this issue. And like I said before, this did not use to happen, I did have some performance drop, but it wasn't a loss of 40 fps or more. Disabling Preview does not resolve this issue.

OBS Version: 23.1.0

Rig Specs:

Ryzen 7 1700 @ 3.8 Ghz
2 x GTX 1080 Ti
16 GB RAM @ 3200 Mhz

Streaming Settings:
Base Resolution: 1920x1080
Output Resolution: 1280x720
Downscale Filter: Lanczos
FPS: 60

I've tried both NVENC and x264 for encoding with the following settings

NVENC:

Bitrate: 6000
Preset: Quality
Profile: High
Turned Off Look-ahead and Psycho Visual Tuning

x264

Bitrate: 6000
CPU Usage Preset: Very Fast
Profile: High
Tune: Film

Can provide more info about the specs and software being used if necessary.
I can provide logs if you really need those, but since I'm not even streaming, I doubt those will help.

I've already disabled Game Mode and Game Bar since apparently this one of the fixes for this issue of people that had this issue, but it didn't really help me.
I've also tried StreamLabs OBS, and this still happens.
 
Narcogen

Narcogen

Active Member
OBS requires resources to render scenes even when not streaming or recording.

Also not sure how you have them set up, but it's rare that having a second GPU in these cases helps-- you may be creating a bottleneck limiting the performance of each card and creating extra load trying to move frames from one to the other.

If you're trying to set Destiny 2 to use one 1080 and OBS to use the other...
 
M

Mephz

New Member
Narcogen said:
OBS requires resources to render scenes even when not streaming or recording.

Also not sure how you have them set up, but it's rare that having a second GPU in these cases helps-- you may be creating a bottleneck limiting the performance of each card and creating extra load trying to move frames from one to the other.

If you're trying to set Destiny 2 to use one 1080 and OBS to use the other...
Click to expand...
Well I have them set up on SLI to maximize 3D Performance, I've always had them like this, but since I've moved to a new version of OBS, this has been happening.

I'm already running on a fresh Windows 10 install to make sure I'm not having some weird issues related to other software being installed, my OS is almost on barebones

I'm not trying to set Destiny 2 run on a GPU and have OBS running on the other
 
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