It's probably just different. I don't know what the Steam Link is like. GFN streams the games from a datacenter, so the quality will depend on the quality of your internet connection. Also, GFN can't play all Steam games; publishers have to agree to allow their games to be played on GFN, and several major publishers don't agree (eg Bethesda, Rockstar). All that said, I'm happy with it. Usually I can't tell at all that it's being streamed, and it's cool to be able to max out every single graphics setting without thinking about it.