Where do you get that? And in any case if the gtx560 can run any game at 32xAA, they always recommend cards based on higher image quality and highest playable settings, not some crappy fps numbers. And gtx560 will still beat the hd5650 anyhow.
Secondly, there's also a apples-to-apples test where they test the cards at equal footing. And fps freaks and quick grazers can always make their decisions based on these apples-to-apples tests.
And lastly, check their recent MSI N580GTX Lightning XE 3GB SLI Video Card Review. Despite it being astronomically costlier than its nearest Radeon rival (6970 CFX), they have given it a gold award. I remember, they were the only site who had recommended the 7950GX2 when it was released. So the AMD bias thing doesn't really hold water.
Of course, they are wrong about the dx11 thing being 64-bit only, that's the hi res texture pack.