High recording bitrates on specific applications

[genesis69420]

Hi, I am encountering a weird behavior while recording Call of Duty with OBS. While recording CS2 or Helldivers 2 (in 1440p ultra @60fps) is creating files with around 30mbps bitrate, my COD recordings are at 200+mbps.

My encoder settings are as follow :

Encoder : NVIDIA NVENC HEVC
No rescaling
CQP : 20
Preset : P5
Tuning : High Quality
Two passes (Quarter Resolution)

Also OBS priority is high by default and runs as admin

Thank you for your insight

 

[koala]

With CQP, bitrate depends on the requested quality. Games with higher graphics detail require more bitrate for the same quality. So if COD is a game that renders with more detailed graphics than the other games, this can be the reason. Foliage, particles, dust and in general sophisticated large scale animations can greatly increase required bitrate.

 

[genesis69420]

With CQP, bitrate depends on the requested quality. Games with higher graphics detail require more bitrate for the same quality. So if COD is a game that renders with more detailed graphics than the other games, this can be the reason. Foliage, particles, dust and in general sophisticated large scale animations can greatly increase required bitrate.

I understand this, it just bugs me that Helldivers 2 seems to handle the same amount of load with 30mbps output bitrate. Does the in-game FPS matter? My output is 60 FPS, but Helldivers 2 runs at 90 FPS avg on ultra whereas COD runs at 140 AVG on ultra
I think it shouldn't affect the bitrate as the video will be 60fps nonetheless but it's weird having only COD producing such big files

 

[koala]

Only recording fps matters. Extra frames are ignored. It's the image complexity and the amount of movement between each frame. If you don't understand the huge difference, make sure you really have the same settings across every game. And make sure the native resolution of all of the games is the same and not upscaled. For example if you actually play one game as 1080p and you record this upscaled as 1440p. Upscaling like this with OBS doesn't add image detail, the recording is as if you're recording a 1080p video in the first place.