Question / Help Windows 10 and 4k

SillyChell

SillyChell

New Member
OK, so I have a new computer and when I'm trying to stream the output just doesn't look very good.

Specs:
CPU: i7-5930k
MOBO: X99-A/3.1
MEM: 16gigs GSkill DDR4 2400
VIDEO: MSI GTX 980ti
(liquid cooling)
MONITOR: CLT 2800 4k

OS: Windows 10 Pro
OBS: Latest release

DISPLAY Settings: 4kx2k, 3840x2160 30Hz

GAME DISPLAY: 3840x2160 (wide)

BANDWIDTH: 100MB down / 50MB up

I am using the suggested configuration by OBS with the exception of downscaling the video to 1920x1080. When viewing the stream the stream isn't nice and crisp except when you stand still. As soon as you being moving around the quality goes down. I've attached a copy of my log file.
 

Attachments

Yep, that's going to happen at only 3500kbps. To hit 0.1bpp density, you'd need to run at 6500kbps. Which is well into the "you may get banned as a DoS attack" territory.

3500kbps is 1080p at 'watchable' quality (0.05bpp), and is the max rate the ingests are rated to support smoothly. Exceeding this is at-your-own-risk.
2000kbps is the maximum advised for non-partnered streamers, as it's the rate at which most viewers will not buffer, per Twitch's released metrics. This is enough for a decent 720p@30fps stream, which is why it's considered the "golden point" for non-partnered streamers. Partners can exceed 2000kbps as they have transcodes (quality options) from the moment they start streaming, so if anyone buffers they can just go to a lower quality.

If you're not a Partner, time to go down another step to 720p. On the up side, you can almost definitely go a step or three slower on the x264 encoding preset (to Medium or even Slow) which will EAT your CPU, but make the stream look noticeably better at a specific bitrate as compared to Veryfast.

If you're a Partner, time to crank it up further. Aim for the 4500-5500 that 1080p really needs, watch your network throughput, and let people know they may need to go to a lower quality if they're buffering a lot (and most people will).
 
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