There won't be "known hardware" for steam machines[0]. They will allow AMD and Nvidia video cards with no specifics about which cards will be allowed. [0] htt

There won't be "known hardware" for steam machines[0]. They will allow AMD and Nvidia video cards with no specifics about which cards will be allowed. [0] http://store.steampowered.com/steamos/buildyourown http://store.steampowered.com/steamos/buildyourown