Originally Posted by RussianGrimmReaper
You're forgetting. The HD4870x2 will have one PCB, that cuts out a lot of money. They can sell the HD4870 for $280(Like the HD3870 when it came out) and $400-$450 for the x2, and they'd still make a killing against NVidia unless the GT200 sells for 600 or less(Won't happen) and performs 20%+ better than the HD4870(which makes no difference since you can get an HD4870x2 for less and still be able to max EVERYthing out)
I'm not forgetting anything... I do realize that AMD saves a chunk of change with their implementation of a single PCB dual GPU design. However the 3870x2 currently sells for $359
(MIR)+ and the 3870 sells for $149
The original MSRP for the 3870x2 was indeed for $449, however the original MSRP for the 3870 was $219. Retailers initially price gouged the 3870s (like they always do with new tech) then their MSRP was recently dropped so they could compete with the 8800gt's current price. IFF the MSRP of the 4870 is $349 I'd expect the 4870s MSRP to be double, much like it was with the HD3K series.
Speculation aside, ATI and Nvidia are very competitive atm. Each offering similar FPS/$ across a broad range of products... I don't expect that to change unless one of the two pulls ahead significantly(in terms of performance).