The best PC I have access to is an i7-7820x 3.6ghz and OVCC maxes out at 475mhz running windows. It ran so fast I had to put my graphics benchmark in a repeated loop to observe the results. Someone please send me a 5ghz 9900K!!! (I wish) Which I calculate and hope should deliver 660mhz!!! Hmm, I need to redesign my benchmark. Walter