For this card to match Charlie's description it would have to either:
1- Be faster than 7970, in which case it will likely cost +/- 50$ from $550
2- Be around 570~580 performance and cost 300$

Both those claims above will likely never occur together with Nvidia. Unless they have an incredibly abnormal reason to do so.
Never seen NV have an Ace in the market and undercharge for it.