AMD's polaris 11 is quite disappointing. Mainly designed for laptop, but performance per watt is roughly Maxwell level. RX460 is the only Polaris 11 GPU on the market right now. Power consumption of rx460 is OK, but its performance is a little bit shy. On paper rx460 consumes less than 75w. All review I see were tested with some factory OC rx460 which consumes roughly 90w. If this year's new MBP was going to be smaller and thinner, dGPU would be a nerfed rx460 or something like a rx450. On contrast, Nvidia goes directly to high end market this year. 1080/1070/1060 for laptop are monsters with almost 90% performance of their desktop counterpart. However, even mobile 1060 would consume more than 75w. Currently, Pascal mobile is designed to work in huge gaming laptops. I think Nvidia might want to give low consumption GPU market to intel's iris pro while focusing on high end market.