Question / Help Advice on memory for x264 encoding

[Boildown]

Look at the log file. Don't pay attention to Windows CPU usage, its not a good indicator of when your CPU is overloaded for video encoding, unless you don't have a hyperthreaded CPU (and maybe even not then). Instead just look at whether you're losing frames.

18:20:59.580: [DShow Device: 'c920'] settings updated:
18:20:59.580: video device: Logitech HD Pro Webcam C920
18:20:59.580: video path: \\?\usb#vid_046d&pid_082d&mi_00#7&133d8db2&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\{bbefb6c7-2fc4-4139-bb8b-a58bba724083}
18:20:59.580: resolution: 1920x1080
18:20:59.580: fps: 30.00 (interval: 333333)
18:20:59.580: format: MJPEG

Your USB bus is probably overloaded. Unless you're a cam-girl or something, you don't need your webcam running at 1080p. Try setting it to 540p.

 

[Maginhart]

Well if you didn't know 1080p helps with better chroma keying and i don't see any problems at 1080p or 720p fps is stable

 

[Maginhart]

I watch it live by using stats in obs i know that i have to watch skipped and missed frames.

 

[Maginhart]

Hmm tried to capture gaming pc trough ndi quality is shittier but I could do Fast now on the same settings so i guess Black Magic Intensity Pro 4k capture card loads cpu even more

 

[jerknerkel]

as long as your ram is dual channel it won't need to be a higher clock speed. Have you overclocked the CPU? mines running at 3.8ghz. going to need some more details!

 

[Maginhart]

3.8 ghz yes

 

[Maginhart]

I had log file https://hastebin.com/rugicoboqe in previous post was testing Witcher 3 Fast high preset 8000 bitrate

 

[Maginhart]

Type of content that was tested grassy fields etc...

 

[Yow580]

FYI, I just pulled an 8gb stick out of my gaming PC to test the dual channel. On 1080p 60fps medium x264 preset my CPU dropped from 95%+ down to a comfortable 60ish% and very smooth video playback. The bios set it down to 2133 from the original single sticks 2400mhz too.

Sounds like I really just need some 3200mhz ryzen 2x4gb kit, but they don't really seem to exist they are all 2x8gb kits : (

Interesting though that it made this much difference, now I need to work out what ram to buy. Maybe I'll just get another generic 8gb 2400mhz stick?

Thanks.

How well does it work because i have a dedicated streaming pc with an i5-8400 can do 936p at 30 fps at medium x264 but is oinned at 100 percent does dual channel really help that much?

 

[Yow580]

as long as your ram is dual channel it won't need to be a higher clock speed. Have you overclocked the CPU? mines running at 3.8ghz. going to need some more details!

How much help does dual channel give cause i have a i5-8400 and can do 936p 30 fps at x264 fast and pinned at 100 percent