I get it, what I am most interested about is what the system will do with those onboard GPU’s when a discrete one is added. Will it “crossfire” there are plenty of things it could offload that aren’t graphics related that run n the GPU. It could handle texture decompression, physics, probably other things too. Would decrease both CPU and GPU load and squeeze out a few extra frames, if they actually support it at a driver level.
+1 on this. I've always thought they should try to exploit the onboard GPU as much as possible, although I don't know what kind of technical issues come along with that. It's unfortunate having compute units just sitting there and doing nothing, though.