Wii U hacked and CPU clock speed revealed, apparently.

[Kynes]

Dgc1808 said:
You need more than just clock speed to determine how powerful something is, though.

But in this case, you can see that it can't be very powerful, with the power consumption it has, and the silicon real estate it uses. The CPU is tiny in comparison with any other CPU, it has three cores with the same size than one ARM A9 core at the same process.