Which is why lying in reviews and review sites in general aren't trustworthy, words are cheap, literally, they can be bought at a low price.
The point was after AMD had a card Nvidia couldn't deal with suddenly and for no reason pretty much all the strongest titles for AMD were removed, lots of Nvidia heavy, physx heavy games were added and other games suddenly AMDs top card lost a huge amount of performance.
One of these things is suspicious, all of them together is frankly unquestionable. They also listed the drivers and those drivers worked perfectly with xfire in that specific game for me and everyone else I could find. There was no reason the game suddenly stopped working with xfire and yet suspiciously it did.