Hexadecatuple Super Extended Graphics Array, or HSXGA, is a display standard that defines a resolution up to 5120x4096. It would be displayed in a 5:4 aspect ratio. A 4:3 aspect ratio version would be HXGA. As the name would imply, it has 16 times the number of pixels as the Super eXtended Graphics Array (SXGA) display standard. It is also 10 times the resolution of Full HD content. This is an experimental standard and no display exists that could show an HSXGA image.
The Widescreen variety is WHSXGA.