1440p (2K) at 120 fps with H.264 (AVC): What You Need to Know
Planning to record or stream 1440p (2K / QHD) footage at 120 fps with H.264 (AVC)? Knowing the exact file size and bitrate before you start saves both time and storage headaches.
QHD at 1440p offers a noticeable quality jump over 1080p without the extreme bandwidth demands of 4K. It is increasingly popular among gaming YouTubers and desktop-focused content. This resolution is particularly favored by tech reviewers and product demo channels.
Recording at 120fps is primarily used for creating smooth slow-motion effects. When played back at 30fps, you get a beautiful 4× slow-motion effect that reveals details invisible to the naked eye.
The H.264 (AVC) codec offers universal hardware and software compatibility across all devices, browsers, and platforms. As the baseline codec, H.264 produces the largest files among modern streaming codecs but guarantees playback on virtually every device manufactured in the last decade.
With these settings, a 10-minute clip weighs approximately 4.48 GB, while a full hour reaches 26.88 GB. You will need a minimum upload speed of 96.2 Mbps for reliable streaming. The total video bitrate for this configuration is 64.0 Mbps.