However, just because you CAN do better, doesn't mean you SHOULD do better. The closer you get to vcore tolerance the more likely you are to increasingly reduce your CPU life expectancy. Not that it's necessarily a deal breaker though. If you are the type to replace your core components every couple of years, then it may not be a big deal to you.
If you want to get 5 or more years out of them though, you may be best served by staying in the 4.5Ghz or less side of the road, as you had planned. I'd think a full time 4.4Ghz OC should serve you pretty well. My 4.5Ghz 6700k gives me all I need even in gaming and with the handful of professional apps I run. Yours should be much the same as not much has changed aside from a few optimizations.