Right now, the speed of 2.3GHz can be achieved at 28nm, making it the fastest clock speed by a mobile processor, where it sees action in the Snapdragon 800 and Tegra 4i, and both of them are tipped to arrive in late 2013 or early 2014. Good news then, that the next generation of processors are said to overtake this clock speed by a considerable margin thanks to the help of a far smaller manufacturer node of 20nm. It is said that this 20nm manufacturing node will be able to yield a 30% faster clock speed with 1.9 times better density at 25% less power consumption, so we could very well be looking at 3GHz processors soon. Hopefully the battery technology on such 3GHz devices will be able to keep up with the pace.