Intel CEO Bob Swan has confirmed that the first dedicated Xe graphics chip is now shipping and should be delivered before the end of the year. Its gaming desktop counterpart, the DG2, will not follow for a few months, though.
https://www.notebookcheck.net/Intel-is-already-delivering-the-Iris-Xe-Max-DG1-ahead-of-its-debut-later-this-year-Xe-DG2-desktop-gaming-GPU-will-not-be-ready-until-2H-2021-at-the-earliest.499151.0.html