Depends a whole heap on what clocks the card was running and knowing it was liquis cooled Id bet alot of money it was most likley liquid chilled with a ton of volt mods on it to up the clocks as far as possible.
The reason is quite simple, no one has submitted a result with that setup.
If you check out Hwbot.org the top 3Dmark score is the one shown on virtual mark. There are no results yet for 9800GX2 in SLI so I guess that's cos the drivers aren't up to it yet.