For 4K (2160p) streaming, YouTube recommends 20,000–51,000 Kbps depending on frame rate and codec, Twitch does not support 4K for any tier of streamer, and Kick unofficially allows it at up to 8,000 Kbps — which is too low to look genuinely sharp at 2160p. Your upload connection needs to sustain at least 30–60 Mbps to stream 4K without dropped frames. Use our bandwidth calculator to verify your line can handle it before changing anything in OBS.
Which Platforms Actually Support 4K Live Streaming
This is the most important question to answer before touching a bitrate slider: most platforms do not support 4K live streams in 2026, and the ones that do have wildly different requirements.
YouTube Live is the only major gaming-focused platform with real, functional 4K live streaming. It ingests up to 51,000 Kbps, re-encodes on its servers, and delivers adaptive streams to viewers at 2160p30 or 2160p60. YouTube also supports AV1 ingest, which lets you achieve better visual quality at lower upload bitrates. Twitch caps all streamers — including partners with 8,000 Kbps video capability — at 1080p on the ingest side. Even if you push a 4K signal, Twitch's servers downscale it to 1080p. There is no 4K on Twitch in 2026. Kick has no hard-coded resolution cap, but its maximum ingest bitrate sits at 8,000 Kbps. At that ceiling, 4K footage looks worse than a clean 1080p60 stream at the same bitrate. Streaming 4K on Kick only makes sense if you have viewers on very fast connections and are using HEVC or AV1 encoding — neither of which Kick has native player support for in most browsers. Facebook Gaming supports 4K ingest but limits playback to 1080p for most viewers, making it a poor investment of upload bandwidth. Bottom line: If 4K is your goal, YouTube Live is currently the only realistic destination.Recommended Bitrates for 4K Streaming on YouTube
YouTube publishes official bitrate guidelines for live ingest. The numbers below reflect those recommendations plus real-world headroom for encoder variance. CBR (constant bitrate) is required — use VBR only for local recordings, not live streams. See our CBR vs VBR guide for why this matters.
| Resolution | Frame Rate | Codec | Recommended Bitrate | Min Bitrate |
| 2160p (4K) | 30 fps | H.264 | 35,000–45,000 Kbps | 20,000 Kbps |
| 2160p (4K) | 60 fps | H.264 | 51,000–68,000 Kbps | 35,000 Kbps |
| 2160p (4K) | 30 fps | HEVC (H.265) | 20,000–30,000 Kbps | 15,000 Kbps |
| 2160p (4K) | 60 fps | HEVC (H.265) | 25,000–40,000 Kbps | 20,000 Kbps |
| 2160p (4K) | 30 fps | AV1 | 15,000–25,000 Kbps | 12,000 Kbps |
| 2160p (4K) | 60 fps | AV1 | 20,000–32,000 Kbps | 16,000 Kbps |
For a deeper look at how these codecs compare on efficiency, see our H.264 vs H.265 vs AV1 codec comparison and the full codec comparison tool.
Upload Speed Requirements for 4K Streaming
A safe rule is to keep your stream bitrate under 75% of your sustained upload speed. This gives headroom for background traffic, VoIP, and the natural variance in your ISP's throughput.
| Target Bitrate | Minimum Upload Speed | Recommended Upload Speed |
| 20,000 Kbps (4K30 H.264 floor) | 27 Mbps | 35 Mbps |
| 35,000 Kbps (4K30 H.264 target) | 47 Mbps | 60 Mbps |
| 51,000 Kbps (4K60 H.264 target) | 68 Mbps | 85 Mbps |
| 25,000 Kbps (4K60 HEVC target) | 33 Mbps | 45 Mbps |
| 20,000 Kbps (4K60 AV1 target) | 27 Mbps | 35 Mbps |
Run a speed test to a server close to YouTube's ingest point, then use our streaming bitrate calculator to model exactly what bitrate is safe for your connection.
OBS Settings for 4K YouTube Streaming
Setting up OBS for 4K is straightforward once your hardware and upload speed are confirmed. The key settings are:
- Output resolution: 3840x2160
- FPS: 30 (preferred for most content) or 60 (gaming, fast motion)
- Rate control: CBR — never VBR for live streaming
- Keyframe interval: 2 seconds (YouTube requires this)
- Encoder: NVENC AV1 (RTX 40-series), NVENC H.265 (RTX 20/30-series), or x264 slow (dedicated streaming PC only)
- Audio bitrate: 192–320 Kbps AAC at 48 kHz
For x264 CPU encoding at 4K, you need a very fast processor. Even a Ryzen 9 7950X struggles to maintain x264 medium at 3840x2160 60fps in real time — the preset will need to drop to "superfast" or "ultrafast", which negates x264's quality advantage. For single-PC 4K streaming, hardware encoders (NVENC, QuickSync, AMF) are essentially mandatory.
Check the OBS settings hub for a full breakdown of every relevant OBS panel, and the NVENC vs x264 guide for encoder-specific advice on bitrate efficiency.
4K Storage and File Size Considerations
If you are also recording locally while streaming — which is strongly recommended at 4K to preserve a clean archival copy — your storage needs scale dramatically. A 4K60 recording at 50,000 Kbps runs through roughly 22 GB per hour. At a more conservative 30,000 Kbps (common for HEVC recordings), that drops to about 13 GB per hour.
| Recording Bitrate | Resolution | File Size Per Hour |
| 50,000 Kbps | 4K60 H.264 | ~22 GB |
| 30,000 Kbps | 4K60 HEVC | ~13 GB |
| 15,000 Kbps | 4K30 AV1 | ~6.5 GB |
| 80,000 Kbps | 4K60 lossless | ~36 GB |
Is 4K Streaming Worth It Right Now
The honest answer: for most streamers, no. Here is why:
Viewer hardware: As of 2026, roughly 30–40% of YouTube viewers watch on a display that can actually show 4K content. The rest are on 1080p monitors or phones where 4K and 1080p are visually indistinguishable. Viewer bandwidth: YouTube's adaptive streaming will automatically drop viewers to 1080p or lower if their connection cannot sustain 4K playback. Your 51,000 Kbps stream only benefits the subset of your audience on a fast connection and a 4K screen simultaneously. CPU/GPU cost: Encoding 4K in real time while also playing a game or running other software is genuinely demanding. Without an RTX 40-series or equivalent, you will either see encoding lag or be forced into such an aggressive encoder preset that quality suffers. When 4K does make sense: Live production streams (sports, events, concerts), IRL streams with a high-quality camera where visual fidelity is the product, and tech reviewers showcasing hardware details where pixel density matters.For gaming streams, a clean 1440p60 stream at 12,000–20,000 Kbps on YouTube will look sharper to more of your audience than a soft 4K stream running at the minimum viable bitrate. See the YouTube platform settings guide for the full picture on what YouTube recommends at each tier.
Frequently Asked Questions
What is the minimum bitrate for 4K streaming?
YouTube's own documentation lists 20,000 Kbps as the floor for 2160p30 with H.264. Below that, 4K footage shows visible compression artifacts — mosquito noise around fine detail, smearing in motion, and macro-blocking in dark scenes. With AV1, you can get acceptable results at 12,000–15,000 Kbps, but you still need hardware that supports AV1 encoding and a platform that accepts AV1 ingest.
Can you stream 4K on Twitch?
No. Twitch does not support 4K live streaming for any account type in 2026. The ingest servers downscale any signal to a maximum of 1080p. If your goal is 4K streaming specifically, Twitch is not the platform for it — YouTube Live is the only major gaming-adjacent platform that actually delivers 2160p to viewers.
How much upload speed do I need for 4K streaming?
For a safe 4K30 H.264 stream at 35,000 Kbps, you need at least 47 Mbps of stable upload throughput, with 60 Mbps recommended for headroom. For 4K60, expect to need 60–85 Mbps. AV1 encoding reduces those requirements significantly — a 4K60 AV1 stream at 20,000 Kbps only needs around 27–35 Mbps upload. Use our bandwidth calculator to check your specific numbers before going live.
Should I use H.264, HEVC, or AV1 for 4K streaming?
AV1 is the best choice if your hardware supports it (RTX 40-series, Intel Arc). It delivers the same perceptual quality as H.264 at 40–50% lower bitrate, which directly reduces the upload bandwidth and storage space required. HEVC (H.265) sits in the middle — about 25–30% more efficient than H.264 — and is supported by a wider range of encoding hardware. H.264 requires the highest bitrates but has universal platform and viewer support. For a full comparison, see the codec comparison guide.