Bzgl. high-very high dx9 vs. dx 10 hier Auszug aus dem Interview, der dürfte alle Fragen beantworten VERY HIGH anscheinend nur auf DX10
"
CY: Players who have DX10 will get a better-looking experience, with all of our settings dialed all the way up, but this will take up more of your hardware's resources. This is what our "Very High" settings are reserved for, and if you have the hardware, we fully recommend it. Our "High" settings can be used by DX10 and DX9 users, and will perform better in DX10, though our DX9 players will have nothing to worry about because we are really pushing that technology to new levels. "