need to replace my two Crossfire hd5770 's , as I be in closed beta a a new but old game base on the `` Battletech '' Universe . this game now work fine with this new card . world of tank prefer the old hd5770 for some odd reason , but it work on that too . two vidcard work with AMD Crossfire , or nvidea slus , do not a `` equivalent '' higher level card make . glad I spend the extra $ $ $ get a single , better card .