Assassin’s Creed 2 at 5760 x 1200 pixels – only anamorphic widescreen support?

PCGH ran the Assassin’s creed 2 PC version on a Eyefinity system with an overall resolution of 5760 x 1200 pixels (3x 1920 x 1200). Apparently the game supports the 48:10 aspect ratio but doesn’t increase the field of view or stretches the image but uses black boxes on the sides. Thus you don’t see more of the game than on a bigger aspect ratio.