Does ARK favor AMD or NVidia? I am curious. I currently own a rx 480 and am considering vega 56 or a gtx 1070.
Outside of big name Studios/AAA/DX12/Vulkan titles you will not find anything that favors AMD they are either Neutral or NVidia biased.
AMD hasn't had the money to invest in smaller studios/DX11 titles unlike NVidia who throws money around like crazy.
AMD lists what games they are actively optimizing for since ReLive under Chill compatible titles.
Chill is sadly easily broken by update/game patches/new content so without constant updates the features broken.