Last week, we learned about the possibility of a faster-than-expected PSP Go, thanks to recently filed patents .
Basically, included in the filing was a speed indicator: 480MHz. This was very different than the earlier reported 333MHz speed, which is why everyone immediately remembered the original PSP, and how it was originally locked at 233MHz. Eventually, a firmware update allowed designers to access the full 333MHz potential of the unit, and many just figured we'd see a repeat performance with the PSP Go. However, according to Engadget , that 480MHz clock speed references the USB device, not the CPU. As far as we know, the CPU speed is still set at 333MHz, and there's no potential for greater power 'cuz the USB's speed of 480MHz really isn't going to help much. This is one of those times when certain documents need to be read more carefully at the outset; such requisite diligence could've saved us a whole lot of hopeful thinking. Of course, we still expect great things from the PSP Go, but we can no longer expect a unit with superior processing speed in comparison to the current PSP. At least, we don't think we can expect that…who knows what hackers may come up with? We don't condone such behavior but weird stuff has been known to happen in the portable world before.
So anyway, just to clarify once again: the 480MHz speed you saw flying all over the Internet last week concerns the USB device of the PSP Go; it has nothing to do with the CPU's processing speed.