Nintendo’s latest Wii U firmware updated hasn’t only introduced a couple of general fixes but apparently has also brought a boost to the console’s GPU and CPU speed.
This “behind the scenes” improvements have yet to be confirmed by Nintendo: everything started from a post on Tv Tropes who stated that the console’s CPU and GPU speeds have been increased:
CPU: IBM PowerPC 7xx-based tri-core processor “Espresso” clocked at 1.24 GHz before the 3.0.0 update, 3.24 GHz after the 3.0.0 update. This is an evolution to the Broadway chip used in the Wii, is 64 bit and uses Power6 technote When IBM has said that Nintendo has licensed the Power7 tech from IBM, Nintendo is not using it for the Wii U, explaining its backwards compatibility.
GPU: AMD Radeon High Definition processor codenamed “Latte” with an eDRAM cache built onto the die clocked at 550 MHz before the 3.0.0 update, 800 MHz after the 3.0.0 update.
These new speeds seem a bit unrealistic since the speed increase is quite big: we don’t really know much about the Wii U hardware but it’s generally quite hard to be able to do something like this with a simple firmware upgrade. Still, the rumor is out there and Nintendo will definitely give us some official details on the matter pretty soon.