I use dual 8800gts 640MB sli, on a C2D at 3.1Ghz, but they are still processor limmited even at 3.1

Running sli made them both slower at 2.1 GHz due to the lack of processing power. .

The 8800ultra R a big robot and need a Big GHz...

I have an extra 8800gts that I need to sell.
You got PM.