ASPECT RATIO | EXAMPLE RESOLUTIONS | NOTES

4:3 | 1024×768, 1600×1200 | common until 2003, matches the aspect ratio of analogue TV, non-widescreen SDTV and early 35 mm film

5:4 | 1280×1024 | common until 2003

3:22 | 160×1440, 2560×1700 | used in some portable PCs since 2013

16:10| 1280×800, 1920×1200 | common between 2003 and 2010

16:9 | 1366×768, 1920×1080, 3840x2160 | common since 2008, matches the aspect ratio of HDTV and widescreen SDTV and 4K

17:9 | 4096×2160 | Digital Cinema Initiatives (DCI) standard for 4K resolution; specification created in 2005 but not widely sold until 2014–15

2:1 | 3840×1920, 1920x960 |

2.39:1 | 1920×816, 3840×1632 4K UHD, 4096×1744 4K DCI |

21:9 | 2560×1080, 3440×1440 | used in some professional and gaming displays since 2015, roughly matches various anamorphic formats

32:9 | 3840×1080, 5120×1440 | used in some high-end displays since 2017

1:1 | 1920×1920 | used in some desktop and professional monitors

4:11 | 7280×4320 | Used in some advertisement displays