> [!Film] BYTEs vs. BITs > - The Byterates (MB/s) listed below are different from Bitrates (Mb/s). > - Byterates allow for each of the following codecs to be compared volumetrically, based on the amount of disk space each will consume per second of footage, depending on the resolution selected: # H.264 - H.264 @ 4KUHD ≈ 20 MB/s (Camera Originals) # AVID DNxHR - DNxHR SQ @ 4K-UHD ≈ 60 MB/s - DNxHR SQ @ 2K-FHD ≈ 15 MB/s - DNxHR LB @ 4K-UHD ≈ 20 MB/s - DNxHR LB @ 2K-FHD ≈ 5 MB/s # Apple ProRes - APR422HQ @ 4K-UHD ≈ 100 MB/s - APR422HQ @ 2K-FHD ≈ 25 MB/s - APR422 @ 4K-UHD ≈ 66 MB/s - APR422 @ 2K-FHD ≈ 17 MB/s - APR422 Proxy @ 4K-UHD ≈ 21 MB/s - APR422 Proxy @ 2K-FHD ≈ 6 MB/s | CODEC | RESOLUTION | | ------------- | ------------------ | | APR 422 HQ | 4K-UHD (3840x2160) | | APR 422 | | | APR 422 Proxy | | # RESOLUTIONS 4K-UHD = Ultra High Definition - 3840 x 2160 (1.78:1 / 16 x 9) 2K-FHD = Full High Definition - 1920 x 1080 (1.78:1 / 16 x 9) # CALCULATORS - [Digital Rebellion - Video Space Calculator](https://www.digitalrebellion.com/webapps/videocalc) - [AJA DataCalc - iOS](https://apps.apple.com/us/app/aja-datacalc/id343454572) - [Computer Target Video Bitrate - WolframAlpha Widgets](https://www.wolframalpha.com/widgets/view.jsp?id=19820c1a8b0bef04a830bac221221fb)