Yea thanks to turbo boost it will run at 4.4Ghz. Depending on the CPU cooler you have and cooling paste you will get anything between 4.4Ghz and 5Ghz out of it probably.
Thats a decent cooler, so again while it already runs at 4.4 Ghz with Turbo Boost, unless your thermal paste is absolutely terrible you should manage 4.6Ghz.