The main performance of the MacBook Pro does not use Intel Iris Pro's strongest core and Nvidia's Pascal graphics, and it is quite surprising that the performance is not as good as the AMD Radeon Pro 400 show alone. Now, the Forbes Web site quotes Daniel Matte, Canalys analyst, as explaining the news.
Why is a MacBook Pro2016 with a card? The truth is a card n cards cheap
Daniel matte that performance is not the main feature in notebooks, and Apple has to weigh the performance, power, and cost into a series of problems, eventually choosing AMD's graphics card.
Specifically, AMD Radeon Pro's thermal design power consumption is only 35W, while the Nvidia peer graphics power consumption is as high as 75W, this is not acceptable to Apple (do not know that the performance is not a grade?).
The current mobile-end product of AMD is not focused on high performance, and more on energy efficiency and low power consumption, says Daniel matte. Nvidia, on the other hand, is far more advanced on high-performance roads than AMD.
But for Apple, AMD's products are more appropriate, and AMD can provide customized drivers for Apple.
Ps. I think, a card is cheap, this is the reason why Apple finally chose AMD. Computer Tutorials