CJ has leaked a bit more information about the NVIDIA GeForce GTX 280 and AMD Radeon HD 4870 X2 at the Beyond3D forums. Last month he said the GeForce GTX 280 scores 4100 in the 3DMark Vantage Extreme profile but he was told the latest GeForce drivers push the card 17 percent higher to around 4800. CJ heard from the same source that a Radeon HD 4870 X2 (R700) will score more than 5500 in the 3DMark Vantage Extreme benchmark.
The X4100 number for the GTX 280 was correct with the drivers at the time. Seems that NV was able to push it to X4800 with the latest drivers. They might add some more points when they enable PhysX on their GPU, but that kinda goes against Futuremark rules... since a PPU can assist for a higher score and not a GPU... this could add up to 1000 points in the CPU test... so we'll have to see what Futuremark decides about including the PhysX into the score....
But here's what you all wanted to hear.... According to the same source R700 scores about X5500> in Vantage.
Furthermore, some numbers on the Radeon HD 4850 were gathered by VR Zone at Computex. The site spotted a Radeon HD 4850 demo system with beta Catalyst drivers, overclocked it from 625MHz to 700MHz and got a P6466 score in 3DMark Vantage.