Which is why this card makes no sense, unless they want you to replace the heat sink, in which case sell the card bare, and take 40 dollars or so off the price.
So unless there is something better(twin frozr), this is worthless? Have a look at reviews of cyclone gtx460 cards. They are all extremely quiet and have great temperatures. Have look at guru3d review of this 6850 card. It has best idle/load temp for this price range cards, noise is really low too.
With cyclone that card is at 65°C when oc to 1017, so I don't think its the temperatures that holds you from some huge overclock... so twin frozr would be probably meaningless