Question / Help Why can't I stream 1080p without it being jerky?

[Ktlink1991]

I tried streaming league of legends at 1080p both 30fps and 60fps but it seem to be choppy/laggy on stream, my stream didnt have buffering issues it was just what was being showed was laggy and jerky.
Is it just not possible for me to stream in 1080p :(
I have included my log file, my most recent one both when i tried at 30fps 1080p and 60fps
pc specs
Cpu: 4690k
gpu: msi gtx 970
ram: 16 gigs
Os: windows 10 64 bits
cooler: corsair hv100i v2 water cooler for cpu
motherboard: Z97-G45 GAMING msi
internet 50 down, 5 up

 

[Sapiens]

Because streaming at 1080p60 is a ton of work for a CPU, which is already busy running the game at the same time. Enable vsync in Lo and downscale your stream to a lower resolution like 1280x720. 1080p60 tends to look like crap within Twitch's bitrate limitations anyway, 720p60 would be much more watchable and less work for your CPU as well.

 

[Ktlink1991]

Because streaming at 1080p60 is a ton of work for a CPU, which is already busy running the game at the same time. Enable vsync in Lo and downscale your stream to a lower resolution like 1280x720. 1080p60 tends to look like crap within Twitch's bitrate limitations anyway, 720p60 would be much more watchable and less work for your CPU as well.

should I keep the base resolution at 1920 1080 and downscale it like you said or should I change the custom base to 720 too?

 

[FerretBomb]

Use the downscale. It downscales the whole frame post-compositing, so maintains better overall quality. Unless you're willing to play the game at 720p, at which point you can stream at native no-downscale resolution for best quality. Not many are willing to do that though, as it tends to look bad on a 1080p monitor.

 

[Sapiens]

Typically your base/canvas resolution should match the game, so if you're running LoL at 1920x1080 then set the canvas resolution to the resolution downscale box to 1280x720.