[Chuchnit]

Bear this with a grain of salt because the guru3d review is the exact opposite and I personally get better results with my single 4870 in COD WaW than either place.

So what to go with? Really it depends on what resolutions you're targeting and what the prices end up being. If you've got a 30" display then either card will work, it's just up to your preference and the items we talked about earlier. If you've got a 24" or smaller display (1920x1200 or below), then the Radeon HD 4890 is the card for you.

http://www.anandtech.com/video/showdoc.aspx?i=3539&p=1