Depends on the manufacturer, good cooling, and a little bit of luck. I got 3d Herc. prophet, so far i managed to get it to 230/475, it still can go higher though, according to different reviews on the card.
edit: opss sorry I didn't notice that you specified a brand for the card.
"Heavier-than-air flying machines are impossible."
Physicist, Lord Kelvin, President, Royal Society, [ENGLAND] 1885.
[This message has been edited by prince (edited 01-02-2002).]
"There is no reason for any individual to have a computer in their home."
Ken Olson (President of Digital Equipment Corporation), Convention of the World Future Society in Boston, 1977