Bitrate, frame rate and resolution are the three things you have to set when live streaming online. All of these factors will affect the quality of your video, how much processing power it takes to encode your video, and how much bandwidth it takes to broadcast your video. As a rule of thumb:
it’s better to broadcast a steady video stream with a slightly lower resolution or frame rate than a super high-quality stream that is constantly buffering due to insufficient bandwidth or other network issues.
Here are the recommended Internet upload speeds for live streaming on major platforms. These include that 40% bandwidth buffer on top of the recommended bitrate (see above section):
Resolution
Frame rate Twitch YouTube FacebookLive
HD 720p-30fps 3.2 – 5 Mbps 2 – 5Mbps 3 – 4 Mbps
HD 720p-60fps 4.4 – 6.2 Mbps 2.9 – 7.4Mbps 3 – 4 Mbps
FHD 1080p-30fps 4.4 – 6.2 Mbps 3.8 – 7.4 Mbps 6 – 7 Mbps
FHD 1080p-60fps 5.6 – 7.4 Mbps 5.6 – 11 Mbps 6 – 7 Mbps
QHD 1440p-30fps 7.4 –15.8 Mbps
QHD 1440p-60fps 11 – 21.8 Mbps
4k 2160p-30fps 15.8 – 41 Mbps
4k 2160p-60fps 24.2 – 61.5 Mbps
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