CPU is not really a competitive one (compared to the i5 3570K and i7 x770k).
It's called the Intel Turbo Boost. It's suppoed to boost your CPU. In your case it could be from 2.7 to 3.0.
No idea how to activate it
Lil bit of googling should help you doh Intel® Turbo Boost Technology ? On-Demand Processor Performance
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