HD 5850s Crossfire = ?

[baresdakilla]

Hi everyone,
I would like to know what are 2xHD 5850s in Crossfire equivalent to. Talking about performance.

Thanks for replies.

 

[alvine]

http://www.tomshardware.com/reviews/radeon-hd-5850,2433.html

 

[baresdakilla]

Thanks,
and how is it against the current series (Nvidia 6xx and HD 7xxx)?