Hello everyone, I'm having trouble recording with OBS And this is preventing me from working. :/

S

Streetguilherme

New Member
I have an i5 10400, RTX 3060 Ti, and 24 GB of RAM. With this setup, I can record smoothly using the NVIDIA app at 4K 60 FPS with a bitrate of 75 Mbps.

However, I recently bought a PS5 to record exclusive PlayStation games for my channel, so I had to purchase a capture card. I bought the model avermedia GC553 PRO ULTRA S. But when recording video with OBS, even after trying many settings from YouTube tutorials, the footage is choppy and runs at around 10 FPS.

Can anyone help me get smooth 4K 60 FPS recordings?

Here are my current settings:

Recording format: MKV

Video encoder: NVIDIA NVENC HEVC (H.264 results in even more stuttering)

Bitrate: 75,000 Kbps

Quality setting: High quality

Preset: P5 Slow (for better quality)

If possible, could someone share their settings if you have a setup with similar hardware performance?

The setup is pretty simple because here in Brazil, things are absurdly expensive. For you guys in North America and Europe, I basically paid the equivalent of a full month's minimum wage for this capture card - which would be like you paying $1,500 for the same product.
 
koala

koala

Active Member
Preset P5 is at the edge of achieving 60 fps at 4k. Try P4 and P3. Nvenc doesn't have infinite computing resources. Also try low latency instead of high quality, that's also lowering computing demand from nvenc.

Speed matrix see here, Table 2: https://docs.nvidia.com/video-technologies/video-codec-sdk/12.2/nvenc-application-note/index.html
This table is for 1920x1080, and 4k is 4 times this resolution, so performance for 4k is a roughly a quarter of the given maximum fps.

If you intend to postprocess your video before upload, and this postprocessing step includes recoding the video material, consider using CQP for recording instead of a bitrate orientated rate control. If you use CQP, the quality you would lose with a lower preset in CBR mode is a slight file size increase instead, with actually the same image quality. If you render this in CBR mode afterwards during postprocessing, the lower preset comes with no quality penalty.

To separate possible issues with your capture device from possible issues within OBS (including the encoding process), consider removing the capture device from OBS and use some video source or game capture source instead, then create proper encoding settings with this. If you get this error free, replace the source with the capture device source. Both at canvas size 4k, fit any dummy testing sources to 4k. But make sure the test sources contain moving source and no static image.
 
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