"Wii U GPU is several generations ahead of current gen" Shin'en

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ViktorBKK said:
Let's take things from the start. Technically, CPU architecture refers to the instruction set of a CPU. Examples are, x86, ARM, MIPS etc.

Both the 360 and Wii U use PowerPC architecture. There is no "exotic" architecture involved, like PS3's mixed-core solution. Now obviously, some people want to believe that there is immense untapped power in this system. The cold hard truth is that Nintendo's system is based on 40-45nm silicon and runs at 75 Watts during full blown game-play. 80 dollar video cards from the same process node run at 100-130 watts. If you understand the principles of semi-conductor size and power consumption, then you know what I'm talking about. There is barely any hardware inside that console.

The fact that 360 and Wii U both have PowerPC CPUs doesn't make them similar. There's big difference between a 3.2GHz PPC CPU with 1MB of cache, a long pipeline, and no audio DSP, and a 1.2Ghz PPC CPU with 3MB of cache, a short pipeline, and an audio DSP. You need specific optimization to make code for one work well for the other.