I have a 10850k cpu, with a HUGE Be Quiet heatsink. Any heavy CPU workload will draw 300+watt, without any overclocking, the cpu will downclock, but not throttle around 100 Celsius. Overclocking has never been more dead than it is today. The days with old Celeron 300 or Core 2 Duo days with 50% + overclock speed are long gone. Today you will most like hit max temperature and cpu throttling.