I tested the notebook’s graphics performance in four versions of 3DMark: 3DMark 2001 SE Pro, 3DMark 2003 3.6.0, 3DMark 2005 1.3.0 and 3DMark 2006 1.1.0.
3DMark is a set of 3D scenes rendered by a unique engine that can load the computer’s graphics subsystem in various ways. Compared with the previous version, 3DMark 2005 uses Shader Model 2.0x/3.0 instead of Shader Model 1.x, provides full compatibility with Shader Model 2.0, includes more complex tests (over a million polygons per each frame), and employs normal maps. 3DMark 2006 brings support for HDR, Uniform Shadow Maps, and multi-core CPUs. It is overall oriented at Shader Model 3.0, but two out of its four graphics tests work within the Shader Model 2.0 framework.
Perhaps its driver is not yet optimized well, but the X3100 is no better than GMA950 in Windows XP. Here is a couple of real games to prove the point.