What is the standard resolution for 4K displays?

The standard resolution for 4K displays is 3840 x 2160 pixels. This resolution is often referred to as "Ultra High Definition" (UHD) and is characterized by having four times the pixel count of Full HD (1920 x 1080). The increased resolution in 4K allows for greater detail and clarity in images, making it particularly desirable for large screen sizes and detailed content such as games, movies, and professional graphics work.

While 7680 x 4320 is indeed a higher resolution known as 8K, it is not the standard for what is commonly referred to as 4K. The other options, such as 1920 x 1080 and 2560 x 1440, are resolutions related to Full HD and Quad HD, respectively, but do not meet the criteria for 4K. Thus, the correct understanding of 4K resolution revolves around 3840 x 2160, aligning with industry standards that define what 4K content should provide.