I suffer from a progressive fps drop when capturing in 4K 60fps

R

rayOcean

New Member
Hello everyone. I have tried all the settings to capture an animated background from the WALLPAPER ENGINE at 4K 60fps and I can't get the video to be a stable 60fps. At 3 seconds after starting the capture the fps plummets. It's incredible because with the same parameters but at 50fps it gives absolutely no problem (attached video).

Device Name DESKTOP-VBBFS0N
Processor 12th Gen Intel(R) Core(TM) i5-12400 2.50 GHz
Installed RAM 16.0 GB (15.7 GB usable)
Device ID 71B2B961-52AC-4953-8962-ADD6218D9A9F
Product ID 00330-80000-00000-AA378
System Type 64-bit operating system, x64 based processor

https://obsproject.com/logs/t3llSvrlLfzOkjyw

https://www.youtube.com/watch?v=aMVQGh2PREs

Any help would be greatly appreciated. Thank You!

PD: No matter what bitrate I set, it always gives the same problem.
 

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R

rockbottom

Active Member
20:03:23.215: Kaspersky: enabled (AV) > REMOVE
Base/Canvas Resolution?
Color Range Full > Partial

20:03:28.100: [jim-nvenc: 'advanced_video_recording'] settings:
20:03:28.100: codec: H264
20:03:28.100: rate_control: CBR > VBR
20:03:28.100: bitrate: 150000
20:03:28.100: cqp: 20
20:03:28.100: keyint: 250
20:03:28.100: preset: P7 > P1 - P3 You'll need to double check
20:03:28.100: tuning: hq
20:03:28.100: multipass: fullres > qres or disabled
20:03:28.100: profile: high
20:03:28.100: width: 4092 ??
20:03:28.100: height: 2158 ??
20:03:28.100: b-frames: 2
20:03:28.100: lookahead: true > uncheck
20:03:28.100: psycho_aq: true > uncheck

Test
 
R

rockbottom

Active Member
FWIW, 12900k/3090 here. Hours of testing, recording, streaming on this rig. All 4k is done @ 30FPS. Quality has to be compromised @ 60FPS. Example: Using Preset P5 will be possible @ 30FPS.
 
R

rockbottom

Active Member
YW!

Correct, the Preset was causing the encoding lag.

Base/Canvas res should match your TV 4096x2160. Color Range is still set @ Full.
 
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