
Originally Posted by
ChrisXY
I am going to buy a similar notebook soon, so I have looked at that a little.
It uses the successor to PowerXpress, it's called "Enduro" and is wired together with the intel card, so it doesn't have manual switching via BIOS or software.
In windows there seem to be some performance issues with it resulting in a loss of up to >10 FPS apparently due to driver issues. An oddity is that games show the intel card as renderer, even if they are rendering on the HD 7970M.
So it seems to be very closely integrated.
I haven't seen any reports on how it works on linux but I have faith that the recent prime/dma-buf will soon allow offloading the rendering to the dedicated card and maybe flgrx will work soon with it too. Maybe, just maybe even together.