https://www.gamespot.com/articles/smallest-gtx-1080-video-card-coming-from-gigabyte/1100-6453152/

Nvidia's GeForce GTX 1080 is one of more powerful video cards on the market today for PC gamers, but it's physically huge. However, Gigabyte (one of Nvidia's board partners) will release a miniature version of the high-end card that'll fit into smaller computer cases.

The Gigabyte GTX 1080 Mini-ITX measures about 6.7 inches in length, about 3.8 inches shorter than the standard models. You'll find many of the same features as the full-sized cards; it still takes an 8-pin connector and should be powered by at least a 500-watt power supply. There's 8 GB of GDDR5X video memory clocked at 10 GHz. It also doesn't skimp out on outputs; there are three DisplayPort 1.4 ports, one HDMI 2.0b port, and one dual-link DVI-D port.