Its more likely than not the scorpio is the Xbox's 9th gen equivilent. If the Scorpio is running at 6 TFLOPs, that's roughly equivilent to a GTX 980ti, which is more than capable of 4k games.
Made a bet with LipeJJ and HylianYoshi that the XB1 will reach 30 million before Wii U reaches 15 million. Loser has to get avatar picked by winner for 6 months (or if I lose, either 6 months avatar control for both Lipe and Hylian, or my patrick avatar comes back forever).