Strange performance on maxed NVENC settings

RiZRP

New Member
Hello all -

I run a dual PC setup and recently built a new gaming PC. When I built the new PC, I swapped my capture card out of my old streaming PC into my old gaming PC, because it was much beefier.

The issue I'm having is I'm able to stream at 1080 @ 60 FPS at an 8k bitrate without issue, with all OBS settings maxed to NVENC. I am also able to use the same settings (maxed) for recording (doing so concurrently to streaming) and not having any frame drop issues what so ever that I can see from the stats window or the logs. I am struggling to understand why when viewing my recordings, I am seeing a random what seems like microstutter occasionally like a few frames may be missing and not sure what I can do to further increase the quality and remove that stutter.

I've tried encoding the recordings with x264 which can't produce nearly the quality I can with the NVENC encoding without actual encoder overloading, and I've tried a mix of different settings within the NVENC encoder, including CBR, VBR and obviously settled on CQP because of all of the recommendations I've seen all over these forums and others.

I feel as if I have tried everything I could to get the best possible quality out of the recordings, but nothing seems to be fixing this microstutter and not 100% clear recording at all times.

Just an FYI - I am using an OBS projector locked at 59.94 FPS to project a game capture to the capture card. OBS is the only application running on the streaming PC, and CPU usage is < 5%.

Any help would be greatly appreciated. I am lost with this one.

Here is an example of the current quality: https://youtu.be/uQRQn36T8VU

Here are the OBS logs: https://pastebin.com/8rTem9ME

Thank you all in advance,
RiZ
 

RiZRP

New Member
I've continued to do research on this but I'm not seeing any sort of fix. I am confused because a majority of the time it seems people are actually seeing performance issues on their GPU or CPU, or OBS logging that frames were skipped. I'm not getting any of that so I'm completely at a loss. Any ideas on what I can do to improve quality here?
 

RiZRP

New Member
Bumpign for visibility. I tried lowering the quality from 7 down to 5 and stuttering is worse, as well as quality is obviously better. Any ideas?
 

Tronk6969

New Member
Also bumping for visibility... Trying to figure out this issue for myself. OBS says I haven't dropped any frames, yet the recordings always stutter like crazy, and it likewise drives me crazy.
 

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