We have been following a brewing controversy over the PC version of Assassin's Creed and its support for AMD Radeon graphics cards with DirectX 10.1 for some time now. The folks at Rage3D first broke this story by noting some major performance gains in the game on a Radeon HD 3870 X2 with antialiasing enabled after Vista Service Pack 1 is installed—gains of up to 20%. Vista SP1, of course, adds support for DirectX version 10.1, among other things.
Rage3D's Alex Voicu also demonstrated some instances of higher quality antialiasing—some edges were touched that otherwise would not be—with DX10.1. Currently, only Radeon HD 3000-series GPUs are DX10.1-capable, and given AMD's struggles of late, the positive news about DX10.1 support in a major game seemed like a much-needed ray of hope for the company and for Radeon owners[...]
Ubisoft, Games, Gaming, DX10, DirextX, AMD, Radeon, GPU