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In OBS, open Settings > Video and set Output (Scaled) Resolution to 3840×2160 and Common FPS Value to 60 (or 59.94 if that matches your source and workflow). If those choices are missing, first check OBS’s output controls and your capture device’s supported modes; if the choices are present but the stream struggles, investigate encoder load and YouTube ingest instead. A 4K canvas alone does not guarantee a native 4K60 source or a stable 4K60 stream.
First, check the OBS output settings for 4K 60fps
- In OBS, open Settings > Video.
- Set Output (Scaled) Resolution to 3840×2160. This is the output size OBS sends to the stream or recording.
- Set Common FPS Value to 60. If your source and workflow use 59.94 fps, choose the available matching option instead.
- Check Base (Canvas) Resolution separately. The canvas is OBS’s workspace for arranging and compositing sources; it is not the setting that determines final stream dimensions.
If 3840×2160 or 60 is absent from these controls, or selecting them does not produce the intended stream, work through the checks below. The precise cause depends on your OBS version, operating system, selected service and encoder, sources, and hardware, so there is no universal fix for every missing control.
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Check whether the capture source supports 4K at 60 fps
A scene or output configured for 4K60 cannot turn a lower-resolution or lower-frame-rate input into native 4K60. For a Video Capture Device source, open its properties and inspect Resolution/FPS Type, Resolution, and FPS. These choices depend on the connected device’s supported modes. An unsupported combination may leave the source blank rather than make it work.
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- If it offers 4K only at a lower frame rate, or 60 fps only at a lower resolution, OBS cannot obtain a native 4K60 signal from that mode.
- If the source is blank after changing the mode, return to a listed supported resolution and frame rate.
If the settings exist, diagnose encoding and performance
A missing menu choice and a stream that stutters are different problems. When OBS lets you select 4K and 60 fps but the output drops frames or becomes unstable, check whether the encoder and system can sustain the workload. OBS uses GPU resources to composite scenes, and its overview guide warns that “60-fps streaming can be very taxing on your system compared to 30-fps.” Hardware encoders are available only where the platform and hardware support them.
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- Run a test with the scene and sources you plan to use, rather than judging capacity from a simple empty scene.
- If output is unstable, temporarily lower the output resolution or frame rate and simplify the scene. If the test stabilizes, the original workload may exceed available rendering or encoding capacity.
- Check the encoder choices OBS makes available on your platform and hardware. Do not assume a hardware encoder is supported just because another computer offers it.
- Use OBS’s encoding performance troubleshooting guide for further steps to isolate rendering and encoding load.
Match YouTube’s 4K60 ingest settings
YouTube’s current English-language encoder guidance lists 4K/2160p at 60 fps and a maximum listed frame rate of 60 fps. For 2160p at 60 fps, the page recommends the following bitrate settings by codec. These are YouTube’s published settings, not a guarantee that your encoder, connection, or stream key can sustain the stream.
| Codec | YouTube-recommended bitrate at 2160p60 | Listed minimum |
|---|---|---|
| AV1 or H.265 | 35 Mbps | 10 Mbps |
| H.264 | 50 Mbps | 14 Mbps |
YouTube recommends constant bitrate (CBR) encoding and a two-second keyframe interval; the interval should not exceed four seconds. Configure the encoder settings in OBS to match the codec and stream workflow you are using, then test whether your connection can maintain the selected bitrate.
For 4K/2160 streams, YouTube does not offer the low-latency option; the stream uses normal latency. If low latency is essential, that is a platform limitation to factor into the format decision.
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Test the stream and check YouTube’s detection
- Test before the event with movement and audio similar to the real stream. YouTube Help advises: “Make sure that you test before you start your live stream.”
- Check your available upload capacity and monitor stream health in YouTube’s Live Control Room during the test. A nominal speed result by itself does not establish that the connection will sustain the required bitrate throughout a broadcast.
- YouTube normally detects resolution and frame rate automatically. If YouTube does not detect the intended mode, review the Live Control Room’s stream-key configuration and any manual stream-resolution setting. See YouTube’s guide to managing live stream settings.
- Use the official YouTube encoder settings, bitrates, and resolutions guidance to confirm current recommendations for your resolution and codec.
Troubleshoot by symptom
| Symptom | Likely area to check | What to do |
|---|---|---|
| 3840×2160 is not available under Output (Scaled) Resolution | OBS output controls or setup-specific constraint | Confirm you are in Settings > Video and inspecting Output (Scaled) Resolution, not only Base (Canvas) Resolution. If still unavailable, capture a screenshot of the Video and Output settings and an OBS log for diagnosis; the cause cannot be determined from the symptom alone. |
| 60 fps is not available | OBS’s available frame-rate choices or setup-specific constraint | Check Common FPS Value under Settings > Video. If the expected value remains absent, document the OBS version, operating system, encoder, and settings page rather than assuming a GPU upgrade is needed. |
| Capture source goes blank after choosing 4K60 | Unsupported device mode | Reopen the capture source properties and choose a resolution/FPS combination the device supports. |
| The source works, but the stream stutters or drops frames | Rendering or encoding load, or connection capacity | Test with a lower output resolution or frame rate and a simpler scene. If that improves the result, investigate system load; also verify stable upload capacity against YouTube’s codec-specific recommendation. |
| OBS appears configured correctly, but YouTube does not show the expected mode | Ingest detection or stream-key configuration | Check stream health and the Live Control Room stream-key settings; YouTube normally detects resolution and frame rate automatically, with manual resolution settings available for custom stream keys. |
If the normal settings checks do not explain a missing control, useful diagnostic details are your OBS version, operating system, selected service and encoder, capture-device model and mode, plus screenshots of Settings > Video and Settings > Output and an OBS log.
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