Theory/Prediction: Sony is about to reveal a Portable PS4

[Pemalite]

caffeinade said:

I never said it was a good idea, or would result in a good product (consoles are budget systems).
The Dell laptop can be configured down to a 1300 USD price-point, retaining two GPUs (one with ~2.5TFLOPs), and a high speed Intel CPU.

You would probably only need a GPU of around 800-1000Gflop to match the Playstation 4.
Provided it has sufficient texture mapping, geometry and render output pipes.

AMD's Ryzen APU's with a 12-25w TDP would fit the bill, the caveat then becomes bandwidth, which the APU's obviously lack.
GDDR5 tends to be fairly power demanding.