I'm running 68-74 C depending on the work load and freq. When I checked this morning I was at around 66 C running just under 3.9 GHz. Stock cooler but IC7 paste. Fan speed is around 2100 RPM just barely audible. When I PBO the CPU, I shoot into the upper 70s and low 80s on the stock cooler with the IC7 paste. I am of the opinion the stock cooler is not terrible at stock speeds but it is also a descent amount of money. Honestly, if I had to do it all over again, I would have just gone directly to the aftermarket for a much better cooler. If anything, AMD should have partnered with a company like Cooler master and been done with it. The other option would be to follow the Intel K based CPUs and not included a cooler at all. Drop the price by 40 bucks and it would still be a great bang for the buck. That is my opinion regarding the stock cooler. I see an aftermarket cooler in my future once this all dies down and I am working again.