Your CPU is 77 TDP at the base clock speed. Intel does not list "boosted" TDP. Under boost conditions your CPU, and all Intel CPUs, are actually at MUCH, MUCH higher thermal design power levels than what is listed on their product specifications.
So, you should rid yourself of the idea that your CPU is "77 TDP". It's actually more like 114w TDP under full boost conditions.
The cooler you listed is a 92mm model, which isn't much better than a stock cooler either. You want, at minimum, a 120mm heatsink. Better, MUCH better, would be some flavor of 140mm heatsink model depending on what your case will support. What is your case model? What country are you in?