Turbo mode
At this point we start with an example: When the operating system only needs the computing power of one core because a single task applications needs to be executed as fast as possible Power Gate can shut down three of the four cores and overvolt/overclock one single core within the same thermal envelope. This feature Intel calls Turbo Mode.
This feature is thanks to the Power Gate again very flexible so every single core, two, three or four of them can be overvolted/overclocked simultaneously.
In other words Turbo mode extends Intels already well known SpeedStep technology by P-states (power states) which the operating system can ask for when it needs more computing power.