Originally Posted by unclewebb
Intel CPUs use turbo boost to reach the highest multiplier. Turbo boost is controlled by a long and a short power limit. If these limits are not set high enough in the bios, your CPU will throttle and slow down when overclocked and fully loaded with Prime95.
When overclocking, some motherboards will set these power limits to unobtainable values like 4095. Your Core Temp screenshot shows that your CPU is being limited to the 95 Watt TDP value.
You can run HWiNFO and it will show you the reason that your CPU is throttling.
Your CPU wont be maxing out on power draw in gaming so it really shouldn't affect gaming performance at all. This power limit usually only shows up in stability testing since very few things will make your CPU go at 100% for long.
i7 7700kK @4.2ghz
16GB DDR4 3200mhz
GeForce 1080 Ti