Non ambitious developers can't do anything on it, but those that try like Slightly Mad Studio's Project CARS, can scratch the surface of the Wii U's potential. As you know the PS4 and XBOX One have a 8-core x86 CPU code named ‘Jaguar.’ They also have 8GB of system RAM. It is said that the PS4 GPU is either a 7870 or a 7850 and the XBOX1 GPU is a 7850. x86 architecture uses what is called CISC or (Complex Instruction Set Computing.) This allows for the hardware to do the majority of the work and gives developers most of the power available right away. The Wii U has 3 CPUs. A custom tri-core PowerPC750 built to run like a Power7 code named ‘Expresso.’ It also has a dual-core input/output ARM processor and a dedicated sound CPU. So altogether the Wii U has 6 available physical cores. PowerPC runs on what is called RISC (Reduced Instruction Set Computing.) This approach uses a much smaller memory footprint and has much faster communication. For those who are lazy this is kryptonite, but for those that are ambitious and talented this is a dream because it allows for better performance with very low power consumption.
