I personally would not waste money on any Fatal1ty products - they are WAY overpriced!
Just get the vf700 or vf 900 if you can afford a little more (which i assume u can if u were willing to buy a fatal1ty product!)
my 7900GT OCed to GTX i.e. 650/ 1700 with 1.4V mod does not go above 50C with the vf900!