I have a couple mid-range Ryzen builds and both have a GTX 750 Ti. I want to replace the two cards. I want to go AMD because I use Linux and don't want to install a proprietary driver. I also do not want to use an auxiliary 6 or 8 pin connector. I want the card to be bus-powered because both are in tiny ITX enclosures . I only play older games. Does AMD have a card that fits this criteria? Thank you.