New
#981
It's on by default.
Basically when you have a task that requires 'more oomph', one of the cores 'auto-overclocks' a bit to provide more performance.
Overall with the newer chip and improved architecture compared to whatever was in the Vaio, performance should be up across the board.
The E-450 isn't meant to be a powerhouse, more of a low power 'all in one chip' for simple tasks and HD video playback.