The new ARC Control video shows for just a brief second what look to be the boost specs of the upcoming top-of-the-line A780 desktop GPU. Based on this info, Intel could indeed have a very competitive mid-range solution, but we know pricing and availability also play a very important role.
https://www.notebookcheck.net/Intel-might-have-revealed-specs-for-top-of-the-line-Alchemist-A780-desktop-GPU-in-its-ARC-Control-video.611245.0.html