The Pentium-M "Dothan" is actually a fairly powerful CPU. It has a large L2 cache, as well as running in the 65nm process field.
To be technical, it's nearly doubly equivalent to a P4 counterpart ... so 4.26GHz if he's running the 2.13 Pentium-M. More roughly ~4.0GHz however, according to some benchmarks.
It's a very innovative mobile CPU.
I got 4317 marks in 3DMark05. My video card is the GeForce Go 6800 256MB. Don't know about 3DMark06, but your score seems low.
Make sure you have the most up to date driver for it ... if the drivers are filtered through a distributor like Gateway, you'd want to download from their site ... not NVIDIA's.