This message was posted on behalf of Intel Corporation
The base frequency of the i7-4790K is 4.0GHz and with Turbo Boost is 4.4GHz. The maximum speed will be reached by only one of the Cores, the rest will run slower. If you over clock all the Cores; processor temperature is going to be hooter than usual.
The chart below shows the maximum speed per Cores using default settings.
OCi7-4790K.JPG 25.8 K