what does 1.8-4.0GHz actualy means?

[potato potato]

i know that it is about the speed but does it mean that cpu without overclocking won't go above 1.8GHz? or it will decide by itself when it should go above 1.8GHz?
thank you in advance.

 

[Darren]

In most situations this means that base clock speed is 1.8GHz but will boost up to 4.0GHz as needed based on usage and given enough thermal and power headroom.

 

[potato potato]

In most situations this means that base clock speed is 1.8GHz but will boost up to 4.0GHz as needed based on usage and given enough thermal and power headroom.

thank you very much