This not not a digitizer, this is a Synaptics Clearpad capacitive device. The pen is fine for navigation in desktop mode, but it's not suited for art or handwriting, remember this is budget...
GPU Stream Processors PS4: 1152
GPU Stream Processors XBO: 768
Of course the PS4 is faster than the XBO. The PS4 also has a faster memory subsystem that can be variably used and isn'...
The PS4 controller is bigger than the PS3 controller.
RT only runs on ARM based processors. That's the easiest way to know.