When it comes to performance and overclocking, ivy bridge processors are not such a big deal compared to sandy bridge anyway. In real-life scenarios they are about 3-5% faster when it comes to processing power, graphical capabilities excluded of course.
Now, with such a low TDP some people would expect ivy bridge processors to overclock much better than sandy bridge ones. It turns out that this is not the case either, the results should be about the same. Of course there will always be better and worse samples when it comes to overclockability.
So the real strength of this new line is the extremely low power consumption (and for developers, the new random number generator). Not bad at all, but still not as great as the jump to sandy bridge.
What I'm concerned about is the next micro-architecture Intel works on. It's supposed to have the voltage regulator of the processor integrated. I'm curious about how it's going to to end up.