cpu in questin is a i7-3770K.
stocks 3.5GHz w/ Turbo 3.9GHz.
 
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stock - according to 
turbo 2.0
1 or 2 core usage = 3.9GHz
3 or 4 core usage = 3.8GHz
idles at 1.2GHz
 
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if this cpu gets oc to 4.5GHz?  does that mean that all 4 core runs at 4.5GHz?  also what happens to idle speed?