Intel Turbo Boost 2.0 offers more flexibility
 

Turbo Boost 2.0 should deliver a few more features and even more performance to upcoming Intel parts. The concept remains the same, the CPU will be able to throttle certain cores depending on the load. However, with Sandy Bridge Intel has incorporated the graphics core in its power sharing algorithm. This means that the graphics core will clock independently from the CPU cores depending on system demands. As with regular Turbo Boost, this will work as long as there is thermal headroom for higher clocks.

http://www.fudzilla.com/processors/p...re-flexibility