8K (4320p) at 120 fps — Bitrate & Storage Calculator
Instantly calculate the file size and bandwidth needed for 8K (4320p) (7680×4320) video at 120 fps. Adjust settings below.
Settings
Live · no signupAdvanced optionsH.264 (AVC) · Medium · 128 kbps audio
Results
7680×4320 @ 120fpsVideo Bitrate Range
Use these settings in OBS
OBS → Settings → Output → Streaming · one-click copy all below
Codec Comparison
| Codec | Bitrate | File Size | vs H.264 |
|---|---|---|---|
| H.264 (AVC)active | 160.13 Mbps | 67.11 GB | 100% |
| H.265 (HEVC) | 96.13 Mbps | 40.29 GB | 60% |
| VP9 | 96.13 Mbps | 40.29 GB | 60% |
| AV1 | 80.13 Mbps | 33.58 GB | 50% |
| ProRes 422 | 560.13 Mbps | 234.75 GB | 350% |
| ProRes 4444 | 800.13 Mbps | 335.33 GB | 500% |
How Much Storage Does 8K (4320p) at 120 fps Need?
Recording or streaming at 8K (4320p) (7680×4320) and 120 fps produces high-quality video, but file sizes can be substantial. The exact storage depends on the codec you choose — H.264 produces larger files, while HEVC and AV1 offer significantly better compression at comparable quality.
For example, a 10-minute 8K (4320p) clip at 120 fps with H.264 can easily exceed several gigabytes. Professional workflows using ProRes will require even more space — making external SSDs and NAS systems essential for serious content creators.
Use the calculator above to get exact estimates for your specific settings, including audio quality and recording duration.
Frequently Asked Questions
How large is a 1-hour 8K (4320p) 120 fps video file?
Using H.264, a 1-hour 8K (4320p) video at 120 fps is approximately 67.11 GB. With HEVC (H.265), it drops to around 40.29 GB — about 40% smaller.
What bitrate should I use for 8K (4320p) at 120 fps?
For 8K (4320p) (7680×4320) at 120 fps with H.264, a bitrate of 160.0 Mbps is recommended. Using HEVC or AV1, you can achieve similar quality at 96.0 Mbps.
What internet speed do I need to stream 8K (4320p) at 120 fps?
You need at least 240.2 Mbps upload speed for 8K (4320p) 120 fps streaming with H.264. With a more efficient codec like HEVC, 144.2 Mbps is sufficient. We recommend 1.5× headroom above your stream bitrate.
Is 8K (4320p) at 120 fps good for YouTube/Twitch?
8K (4320p) at 120 fps is excellent for YouTube uploads where viewers can select quality. For Twitch, most streamers use 1080p60 due to bitrate caps, but 8K (4320p) recording for local editing is common among professional creators.