Can someone enlighten me as to the differences between these two top end cards? I am upgrading and it looks like I am going to have to get the 9800Pro because that is what the Dell XPS uses. Thanks.

There are plenty of reviews, here are two.http://www.hardocp.com/article.html?art=NDcyhttp://www.anandtech.com/video/showdoc.html?i=1821Kurt M