They did use NVIDIA GPU's but they don't. I am not sure about this part: >y MBP is well behaved when I dont plug in an external monitor, and noisy/hot when I

They did use NVIDIA GPU's but they don't. I am not sure about this part: >y MBP is well behaved when I dont plug in an external monitor, and noisy/hot when I do. This is with both OSX and Linux. Because it doesn't on my laptops and screen.