Computer screen resolutions and aspect ratios

AbbreviationResolution, aspect ratio
XGA1024x768 4:3
WXGA1152x768 3:2
WXGA1280x768 5:3
WXGA1280x800 16:10
WXGA1360x768 16:9
FWXGA 1st1366x768 16:9
13-inch MacBook Pro 20121280x800 16:10
XGA+1152x864 4:3
WXGA+1440x900 16:10
15-inch MacBook Pro 20121440x900 16:10
WSXGA1440x960 3:2
SXGA1280x1024 5:4
SXGA+1400x1050 4:3
WSXGA+1680x1050 16:10
UXGA1600x1200 4:3
Full HD FHD and better1920x1080 16:9
21.5-inch iMac 20151920x1080 19:9
WUXGA and better1920x1200 16:10
QHD and better2560x1440 16:9
13-inch MacBook 20152560x1600 16:10
13-inch MacBook Air 20182560x1600 16:10
16-inch MacBook Pro 20193072x1920 16:10
4K UHD and better3840x2160 16:9
27-inch iMac 20145120x2880 16:9
24-inch iMac Pro 20244480x2520 16:9

The most popular computer screen resolutions

The most popular computer displays resolutions in 2021 are 1920x1080 and 1366x768, with around 20% of share each. 1366x768 is for smaller and cheaper monitors. 1920x1080 is a Full HD video screen format accepted as the standard in Blu-ray and digital TV broadcast. The popularity of Full HD resolution particularly became obvious after YouTube added support for 1080p in 2009. If a screen has an odd resolution to HD, for example, 2560x1600, you still see the HD movie in full-screen mode, but it is not as sharp as on the screen's lesser resolution. Also, most computer programs and operating systems designed natively for HD resolution. That is why I'd prefer HD to QHD. When you have a different resolution, you may want adjust windows and fonts to fit the program's interface for clarity. The next even to HD resolution up is 3840x2160 UHD or 4K.

Computer screen refresh rate

The other important specification of monitors is the refresh rate. The prevalent one due to monitor prices is 60 Hz. However, the better refresh rate for eye health is at least 75Hz. 60Hz was chosen due to TV hardware limitations in the 1950s and electricity frequency. It is on the verge of human capabilities. Prolonged viewing of an image flickering 60 times a second leading to red eyes, fatigue, etc. unwanted effects at the workplace.