Actually, at launch, the 4870, in price terms, was head to head with the 9800 GTX, which it absolutely crushed in gaming performance. I don't know how many of you can recall memories from 10 months ago, but they then slashed the price of the 9800 GTX to put it into competition with the 4850 (which at the time still beat it marginally), then they brought out the 9800 GTX+, which for a number of months remained more expensive than the 4850. And also the price of the GTX260 to compete with the 4870.

I can't believe what I am reading here. It's so predictable certain people discounting ATi's featureset but Nvidia's let's face it currently useless PhysX (and will probably be gone when OpenCL comes around) is amazing in comparison...