hi.. can i crossfire this http://www.bit-tech.net/hardware/graphics/2008/11/18/gainward-radeon-hd-4870-1gb-golden-sample/1 with that http://www.gainward.com/main/vgapro.php?id=83????
Yes. (Source: http://ati.amd.com/technology/crossfire/charts.html)
However, if you do pair these cards up, make sure to put the x2 in the faster pcie slot, if applicable. (x16 vs x8)
I'm just curious, why would you go with Gainward? When it comes to ati cards, HIS is my favorite choice.