PowerColor has released a mini ITX version of the AMD Radeon RX 5700. While the card operates at the same clock speed as the reference RX 5700, the PowerColor RX 5700 ITX only requires a single PICe 8-pin power connector. The reference card requires an 8-pin connector as well as a 6-pin connection. Sadly, the PowerColor RX 5700 ITX is exclusive to Japan for now.
https://www.notebookcheck.net/Powercolor-releases-Radeon-RX-5700-ITX-compact-GPU-but-only-in-Japan.448590.0.html
So... if i wait 4 years i can probably pic one up for 100 dollars. and maybe Red Dead 2 for 10 bucks ;)