I had to flash my xtreme to f4 beta because I was having weird fan issues, AB and Gpuz were saying fans were spinning when they were not, they were dead still benching and over 60c and climbing, so I stopped the bench asap. thought I had a bad card then saw on f4beta changelog that it was stability improvements too...
I flashed and all fan issues gone, runs like a beauty and solid at 2088 oc,
but I will run her at 2050, the extra 30 or so is less than 1 frame.
if I can do 2050 24/7 with min volts and under 70 its a winner.
we have to remember these cards are clocked 1400 or so stock from NVidia or so we already have a 500-600 MHz oc given to us out the box.
the side treat was the 150% which was only 125 prior.