I don't know exactly how many it is but I know for a fact this is how their pre rendered cutscenes are made. In engine on extra Ps4s for the extra power to make the cutscenes look smoother.
@ plasticaman. They've said in the past this is what they do for cutscenes. Don't know where all the deluded disagrees are coming from. It's like saying in game of the last of us is equal to the cutscenes when it clearly isn't.
In game won't look like this. Cutscenes will. Naughty Dog use about 4 Ps4s hooked up together to create the smooth pre rendered cutscenes with extra fidelity. The in game graphics will be great but not as good as these graphics here. Don't believe me, look at uncharted 2 or the last of us or whatever