Question / Help Cannot record in 240 FPS.

R

Ruxisy

New Member
Hi there, I got a new PC and it's pretty good, but every time I record in 240 FPS it's just very laggy.
Here's the video footage: https://www.youtube.com/watch?v=iLj7R-uJ35k

PC Specs
CPU: i7 9700KF
GPU: Asus RTX 2060 Super
Ram: 16GB @3600
Motherboard: ASRock Z390 Phantom Gaming 4S
SSD: NVMe M.2 (500GB)
 

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  • 2019-12-28 20-10-28.txt
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Narcogen

Narcogen

Active Member
https://obsproject.com/wiki/GPU-overload-issues

Recording 240fps with OBS is not a realistic expectation because of how OBS works. It will attempt to render as well as preview at that framerate, which will use a lot of GPU resources. This is the cause of the rendering lag error in your log. 120fps might be possible.

20:10:29.135: YUV mode: 601/Full

This setting isn't helping as the Full color range is increasing GPU load without any apparent improvement in quality, especially since most displays do not use this color space, and this recording will actually look worse than Partial on them.
 
Sukiyucky

Sukiyucky

Member
Using NVENC at that high frame rate is the way to go. I wouldn't bother doing 240FPS with x264 unless you have a really strong high multicore system.

Case in point, tests with my i9-9900K, RTX 2080Ti struggles:
- x264 veryfast, 1080p@240FPS@20000 results in encoding lag, 100% CPU usage and very hot 94C-100C temps

Using NVENC new is fine. I can do 1080p@240FPS at CQP 20 Max Quality

This results in overall 50% CPU usage while playing Fortnite; 75-80 C temps and very good 240FPS recordings when viewed on my 240Hz 1080p monitor. Watching it on a smaller form factor screen device in 1080p 60Hz looks good.

File size is large. If you got a monthly Internet bandwidth usage limit, you may want to reconsider before uploading to YouTube.

Looking at your log I would not stuff all the game captures and monitor captures in one scene.
You only need one game capture. Why? Because you are just going to choose based on fullscreen or window. Surely, thats not difficult is it?

20:10:29.977: Loaded scenes:
20:10:29.977: - scene 'Scene':
20:10:29.977: - source: 'Fortnite' (game_capture)
20:10:29.977: - source: 'Minecraft' (game_capture)
20:10:29.977: - source: 'Desktop' (monitor_capture)
20:10:29.977: - source: 'Roblox' (game_capture)
20:10:29.977: - source: 'fortnite2' (monitor_capture)

Create separate scenes per capture type:

Scene 1
source: game capture

Scene 2
source: monitor capture


Try fixing this first. If that doesn't work, it maybe that your RTX 2060 Super is not strong enough to render.
 
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