Occasionally, not often. And not by much when it does.
The vast majority of the time the 5870 is significantly ahead. Plus it has a significantly lower power consumption.
For those interested i just ran 3DMark Vantage with my new 470. Not sure if i did it right though, am i supposed to alter any settings in Nvidia Control panel and stuff ?
the CPU score actually looks higher than normal.
I think it's probably using the GPU to process the CPU tests (which Futuremark actually doesn't want to allow)