NO ONE UNDERSTANDS YOU!!!!
The CPUs in the PS3 and 360 are In Order Execution. This means that there's a stack of processes waiting to be executed. If the first process in the stack takes too long to be run in the current process cycle the CPU remains idle and waits for the next cycle to begin so it can be checked again, and carries on being idle until there's enough time to run the process.
The CPUs in the Gamecube, the Wii and the Wii U are Out of Order Execution. There's a stack of processes as in the example above but this time, due to it being OoOE, if there isn't enough time to run the first process in the stack the CPU looks at the next process in the stack and the following processes until it finds a process that can be run before the next cycle begins. This means the CPU spends less time being idle and is a great deal more efficient. Because of this OoOE CPUs are faster than IOE CPUs, and are better suited to gaming.
SMT stands for Simultaneous Multi Threading, the number of SMTs per core in a CPU tells you how many processes the CPU can do at the same time (although strictly speaking it isn't actually simultaneous but that's a longer and more complex explanation lol).
A DSP is a Digital Signal Processor which is a chip dedicated solely to handle audio. Again, the Gamecube, Wii and Wii U all have DSPs. The 360 and PS3 don't, which means that the grunt work is done by the CPU. Microsoft lock 1 thread out of 6 to handle audio, but because sound is so important (you see graphics messing up all the time and you don't register it but if the sound of a game isn't perfect you can't help but notice it...that's why sound in games rarely cocks up!) developers often use half of the 360's processing power (3 out of 6 threads) to deal with sound. Because the U has a DSP the U's CPU doesn't have to handle sound, so it has 16.6% more power at least before a line of code has been written.
In a lot of ways the Gamecube was ahead of it's time, and in some ways it was completely backwards lol, although I never owned one because I've always favoured Sony consoles over Nintendo ones. That's beginning to change now though.
There you go, you should understand what I'm talking about now.
Edit: It should also be noted that the 360's lack of a DSP could be the reason why those anonymous developers claimed that the CPU of the U wasn't up to snuff - the silly sods probably ported it straight across using the CPU to sort out the audio without using the DSP.
