If you take the phone, laptop or handheld console approach to clock speeds then in theory this could happen and there is no reason to believe its not possible.
This of course doesn't mean the processor is suddenly 3.24ghz its more likely to be unlocked so that under peak load it can scale to 3.24ghz for games that use this feature.
It's a really good feature to have (if it exists) as you effectively run the console at slow speeds unless you need the extra power. Portable devices do this clearly to save power and sometimes to reduce heat output due to the more difficult cooling of laptops for example.
Its a fantastic feature if the wii u has this and I suggested it as possibility many, many months ago when the 1.24ghz clock speed was announced. Mainly because it was just to hard to believe at the time that the wii u would be limited to 1.24ghz and I guess I was clutching at straws hoping that the wii u had power in reserve.
There are other factors though and we know the bandwidth of the memory chips is quite low and Nintendo went for the value end of the market so to speak. There is little point stressing the gpu and cpu at higher speeds if you simply haven't got the memory bandwidth to cope with it, the cache can only cache so much.
I really hope this is true. Every wii u game that comes out that either matches or underperforms compared to 360 and PS3 is killing it. Yes there are many that bought the wii u for Nintendo's amazing games but others are looking for a good all round console. There is no technical reason why this speed unrestrictor isn't true but that doesn't mean it is and even if true other parts of the wii u may limit what can be achieved at these higher speeds. Nintendo may know that these increased speeds will stress the console more but with the current sales figures is perhaps desperate to try anything that might help.
We will be able to validate this when later games arrive that make use of this speed increase as power consumption will spike.
Also no reason to believe that even if 3.24ghz has been unlocked for future use, the default speed now hasn't been raised slightly from 1.24ghz to perhaps 1.6ghz for example (wishful thinking).
Alternatively the speed increase seen is just down to simple optimisation of code ( far more likely unfortunately)
32MB of EDRAM can effectively pull all of the biggest beandwidth users off of main memory, to the point where main memory bandwidth is unimportant, developers have already said that when they run their benchmarks they are seeing much higher effective speeds than what the hardware should allow for.
That said, it is entirely plausible that they allow the clock to be manipulated to a point for games that need it, but I seriously doubt 3.2GHz, and the fact that the person who started this claims that Espresso is just a better PPC750 but out of the other side of his mouth says it is clocked over 3GHz makes the remark completely invalid.
