High-definition video

High-definition video, or HD video, refers to higher resolution video in HDTV specifications that has been superseding traditional standard-definition television. Video resolutions of 4K and above are referred to as ultra high-definition video (UHD).

Specifications

High-definition

Name	Resolution	Corresponding Apple product	Year
720p (Standard HD)	1280 x 720	15-inch PowerBook G4 (1280 x 854)	2002
1080p / 1080i (Full HD)	1920 x 1080	23-inch Cinema HD Display (1920 x 1200)	2002
1440p (Quad HD)	2560 x 1440	27-inch Intel-based iMac (2560 x 1440)	2009

Ultra high-definition

Name	Resolution	Corresponding Apple product	Year
2160p (4K)	3840 x 2160	21.5-inch iMac with Retina display (4096 x 2304)	2015
2880p (5K)	5120 x 2880	27-inch iMac with Retina display (5120 x 2880)	2014
3240p (6K)	6144 x 3240	32-inch Pro Display XDR (6016 × 3384)	2019
4320p (8K)	7680 x 4320

External links

• Change your Mac display’s resolution at Apple Support
• Apple devices resolutions at Visually
• HDTV buying guide: Specifications by Alfred Poor at Macworld (2009-12-08)
• HDTV (High Definition Television) at TechTerms
• High-definition video at Wikipedia

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