30fps or 60fps: which should you stream at?
Choose 60 when the subject moves: sport, gameplay, a stage, a fitness class. Choose 30 for talking heads, slides and lecterns. Sixty costs roughly half again as much bitrate and buys nothing on a static shot.
Frame rate is the most expensive setting on the page and the one most often picked by reflex. Higher is not better here; it is better for some content and pure waste for the rest, and the distinction is easy to make once you know what you are looking for.
What the extra frames are for
More frames per second means smoother motion, and nothing else. They do not make the picture sharper, and at a fixed bitrate they make it slightly softer, because the same number of bits now has twice as many pictures to describe.
So the question is only ever whether your content has motion that benefits. If the answer is no, you are spending bitrate on frames nobody perceives and slightly degrading the frames they do.
The cases where 60 earns it
Sport is the clearest. Thirty frames is not enough to carry a ball across the screen smoothly, and an audience reads the result as a fault in your production. Gameplay is the same argument with an additional one on top: an audience used to high-refresh play reads 30 frames as sluggish.
Fitness instruction belongs here too, and for a reason that is easy to miss. A participant is copying a movement, and at 30 frames a fast sequence smears in exactly the moment they are trying to see the shape of it. Live music belongs here as well, because stage lighting and a moving performer under it is genuinely high-motion content.
The cases where 30 is correct
Two people at a desk. A presenter beside a slide. A council chamber. A lectern. These are close to still images, and they look identical at either rung to anybody watching. Taking 30 frees up bitrate for detail, which is what actually matters when somebody is reading text on a shared screen.
For a school board meeting or a conference track, choosing 30 is not a compromise. It is the better setting, and it is kinder to the building’s connection across a four-hour session.
Two things that constrain the choice
Sixty is the top of the ladder. Capture at 120 or 144 by all means — it comes in fine and is resampled on the way through — but none of those extra frames survive into what your audience receives.
And the choice is fixed once you go live. Frame rate is read when the stream starts and does not renegotiate, so you cannot drop from 60 to 30 partway through to nurse a failing connection. The levers available mid-show are bitrate and buffering. Pick 60 only when you are confident the uplink holds it for the whole show.
Put it to work on a real show
Where 60 frames is not a preference but the baseline expectation of the audience.
The less obvious 60-frame case: participants are copying movement, and smearing defeats the purpose of the class.
The clearest case for 30, where bitrate is better spent on legible nameplates and exhibits across a long session.
Related guides
For 1080p30, about 6 Mbps. For 1080p60, about 9. For 720p30, about 3, and 720p60, about 4.5. Frame rate drives the number far harder than resolution does, and your upload has to sustain it, not peak at it.
A keyframe is a complete picture; every other frame only describes what changed. A viewer cannot start watching until one arrives, so a two-second interval means up to two seconds of blank player before your stream appears for them.