CPU for new mini pc for retrogaming: is Demul supported both by Intel and AMD?

Hi

i would like to buy a a mini-pc (mini-itx) to connect to my tv for retrogaming. Is Demul supported in the same way both from Intel i5/i7 and AMD Ryzen 2600X/2700X?
I would like to buy an AMD Ryzen 2600X, cheaper and with really good performance. Or is it better to buy and Intel processor becasue it has a better compatibility with Demul?

I will buy a motherboard like Gigabyte B360N or AsRock AB350 Gaming ITX/AC AMD AM4. And the GPU will be a ZOTAC GeForce GTX 1060 6GB Mini ZT-P10600A

thanks