8k
8k is the acronym for 8,000 Pixels.

8,000 Pixels
A resolution standard in digital video and television is notably higher than the more common 4K and Full HD standards. The 8K term signifies approximately 8,000 pixels of horizontal resolution. More specifically, the standard 8K resolution is 7,680 by 4,320 pixels, which amounts to over 33 million pixels in total, or four times the resolution of 4K (which is 3,840 by 2,160 pixels) and sixteen times the resolution of Full HD (which is 1,920 by 1,080 pixels).
This ultra-high definition (UHD) resolution provides an exceptionally detailed and crisp image, particularly noticeable on large screens or when viewed from close distances. 8K content is most appreciated in contexts where the highest possible image clarity is desired, such as in high-end television and film production, professional photography, and specialized applications like medical imaging or scientific visualization. However, the production, editing, and distribution of 8K content require significantly more data storage and processing power than lower resolutions like 4K and Full HD.
- Abbreviation: 8k