GraphicsProfilePreferedMultisampleCount Property

Gets or sets an integer that specifies the multisampling count that should be used by the graphics card. If specified multisamplig count is not supported, than the highest supported multisamplig count will be used. Possible values are: 0 (disabled), 2, 4, 8, 16. Increasing multisampling count improve image quality by reducing pixel aliasing but can greatly reduce performance. NOTE: Changing this property after the DXDevice is initialized will have no effect.

public int PreferedMultisampleCount { get; set; }