It has successfully owned my 2 x 6950 2GB Crossfire The latest 2GB patch from Steam now enables a small built-in benchmark, through the beginning scene of the demo battle. The 3rd option is not hardware demanding at all. With the following steps it is possible to stress test your system: a) Select "Play Total War: SHOGUN 2", and change everything to max in game options: b) Exit game, and re-open the Steam startup menu and select "Benchmark Game Settings". Here are results of 2 x 6950 2GB Crossfire: and for single 6950 2GB: and here is a plot of the output log file using Excel: Crossfire suffers a lag spike in the 4th second or so. Not sure if others have the same problem. I'd say such fps is not playable for multiplayer game sessions, or 3rd party MODs to enable larger size of troops.