In addition to the previously reported Centrino 2 (Montevina) IGP chipsets GM45, GS45 and GL40, Intel will add a performance/mainstream level model, the GM47 to the list, according to sources at notebook makers. The GM47 features a built-in GMA X4500HD graphics engine like the GM45, but with a higher core frequency of 640MHz. The engine will support DirectX 10 and Shader Model 4.0, and feature built-in HDMI, DVI and Display Port support.