What shader models does XNA Game Studio support?
XNA Game Studio supports all the DirectX 9 shader models (versions 1.x, 2.x, and 3.0) on Windows, along with some variants. For a full list of supported shaders, see the ShaderProfile enumeration. On Xbox 360, XNA Game Studio supports Shader Model 2.0 and an extended variant of 3.0 customized for the Xbox 360. Some starter kits may have more restrictive requirements. For example, the Spacewar Starter Kit requires Shader Model 2.0 or higher.
