Hell, especially the (r)macbook pro 15 that I got from my company which had the same 4770HQ - Apple for some reason believes that customers should have their legs burnt and CPU throttled before the fan even spins up.
Must have it confused with my last laptop's 4/8 i7 product code (which was an i7-3630QM).
The i7-4770HQ is listed as a 2,4 to 3,4 Ghz chip, so there's no reason it should ever throttle in a 15 inch laptop unless the laptop manufacturer messed up real hard (since the same silicon running at a higher frequency, with the same TDP, is adequately cooled by a single tiny fan on a 13 inch laptop).
It's rather unfair to say that laptops generally can't have consumer desktop-level performance on the CPU side, based on a few experiences with specific OEMs.
Now, this changes entirely when 6 and 8 cores are affordable. Desktops make sense again.
I have a 4core/8thread i7 laptop (4630QM) and I cannot get it to throttle after stress testing it for multiple minutes.
The GPU throttles if my thermal paste is getting old and the laptop sits flat on a desk and a game stresses it to 100% all the time. But the CPU I just cannot get to throttle, even with the above conditions being true, unless I remove the paste.
And this is a 13-inch, single fan laptop.
Consider repasting actually, there is no reason your CPU should be throttling.