MSI R7970 Lightning Review @ Vortez
 

Released 3 months after the reference HD7970, the MSI R7970 Lightning is touted as the cream of the crop, the headline act with a huge factory overclock of 1070MHz on the core and 1400MHz for the memory. Bearing in mind that the reference HD7970 had a 925/1375MHz on the core and memory respectively you can't be anything but impressed with MSI's overclock.

http://www.vortez.net/review.php?id=677