Half Life 1 GMA 4500M issues?

Whats the cpu on the notebook? My friend and I both have an intel GMA x3100 but he has a 2.0ghz cpu and mine is the 1.83 and it makes a huge difference. It should be running even source games fine with that GPU if your CPU is a dual core 2.0ghz or higher (I have seen it done). even my laptop with the 1.83 runs it at med/low pretty well.