The first laptops with this product are expected in Q1 2018 and some analysts believe this may be an Apple-exclusive. Here's the photo of a prototype with the chip, the Intel CPU is located left and the Radeon GPU + HBM2 is found on the right.
Finally we will have serious gaming ultrabooks! pic.twitter.com/f788pYRqjg
— Bits And Chips - Eng (@BitsAndChipsEng) November 9, 2017