I was also one of the very few to expect a top of the line laptop GPU for ps4, the idea was attacked furiously with the argument that "laptop top of the line GPUs cant be used for consoles because they cost too much and they come on limited quantity"
But it's not a top of the line laptop GPU because it's not binned for low power. It's more equivilent to a slightely cut down lower end enthusiast GPU from mid 2012.