I think we all know this now. We don't need a post like this in every thread.
The 9400M (integrated) scores somewhere between 2000 and 2344. Thats the only tests I've seen so far. I belive that is a bit higher than the X1600. (between 10-25% perfomance boosts according to the 3dMark06 tests, under the assumption that X1600 scores around 18xx point)