Glossary:4K Ultra HD

From PCGamingWiki, the wiki about fixing PC games
Comparison of 4K Ultra HD and other common 16:9 aspect ratio monitor resolutions.
Comparison of 4K Ultra HD and other common 16:9 aspect ratio monitor resolutions.

For a list of games, see games with 4K Ultra HD support.

Key points

4K Ultra HD (also 4K UHD or simply UHD) refers to a new standard of screen resolution at 3840 pixels wide and 2160 pixels tall.
It is important to note that 4K refers to the horizontal resolution, in contrast to others, such as '1080p', which refer to the vertical resolution. 4K Ultra HD is therefore also known as '2160p'.[1]

More information

4K resolution (Wikipedia)
Ultra high definition television (Wikipedia)
List of 4K UHD monitors (WSGF)

Properties[edit]

Advantages[edit]

Far higher resolution and pixel density leads to greater clarity and reduces the need for anti-aliasing.[2]

Disadvantages[edit]

Few games currently support 4K UHD natively.[3]
Running games at this resolution requires an extremely high-end rig - achieving 60 FPS at max settings on Metro 2033 requires four NVIDIA GTX Titans.[4]

Game support and fixes[edit]

Widescreen Gaming Forum (WSGF)[edit]

The WSGF have recently introduced a new set of medals relating to a game's support for 4K Ultra HD.
Similarly, the site also contains information on how to force individual games to support 4K Ultra HD.
This information has now been implemented into the PCGamingWiki video settings table.
The vast majority of games have yet to be rated by the WSGF for their 4K Ultra HD support.

PCGamingWiki icons[edit]

PCGamingWiki uses icons in the video settings table to illustrate the level of 4K UHD support awarded to a game by the WSGF.
Gold Silver Limited Unsupported Incomplete/Unknown

Icon

WSGF 4K Gold.svg WSGF 4K Silver.svg WSGF 4K Bronze.svg False icon.svg WSGF Incomplete.svg

Description

Equivalent to an A-grade from the WSGF. The game has received a perfect score from the WSGF for its 4K UHD support, and is '4K Ultra HD Certified'. Equivalent to a B-grade from the WSGF. The game is without major flaws in its 4K UHD support, but has at least one blemish that prevents a perfect score. Equivalent to a C-grade from the WSGF. The game has some level of 4K UHD support but has significant practical issues. Equivalent to an unsupported grade from the WSGF. The game is unplayable in 4K UHD, or the image may be stretched to fit the window. Equivalent to an incomplete or unknown grade from the WSGF. Analysis of the game's 4K UHD support has not yet been completed.

Linux support[edit]

4K support on Linux, especially at 60 Hz, can be spotty due to the varying quality of drivers and their ability to stitch together DisplayPort MST panels. hax11 attempts to work around similar issues by intercepting and editing X11 requests between games and the X server.

References

  1. Wikipedia:4K resolution
  2. http://hexus.net/tech/reviews/displays/57849-asus-pq321q-4k-gaming-tried-tested/
  3. http://www.extremetech.com/gaming/162385-goodbye-4k-17000-12k-gaming-pc-pushes-1-5-billion-pixels-per-second
  4. http://www.anandtech.com/show/7120/some-quick-gaming-numbers-at-4k-max-settings