You guys could take a look at the issue of Mobile PC Magazine... where they do reviews and benchamarks of diff laptops, some running 9200s, 9600s, 7500s, intel extreme, etc.
From what I have seen... most machines that are similarly configured as the Sentia get an average of about 35 fps in Unreal Tournament 2003. This is running it at 800 x 600, using HardOCP's Unreal benchmark.
As an example I will cite the Gateway m275XL, which has a 1.6GHz and 512mb ram, along with the Intel Extreme 2. It got a 35.2 in the bechmark for Unreal. Then another machine got a 34 while running at 1.2GHz.
However when a 1GHz ULV (Ultra Low Voltage) P-M ith 32mb nvidia geforce4 420 Go, with 512mb of ram was tested... it got a 63.7 on Unreal.
Another example of a machine running dedicated graphics (a 32mb 9000 ATI), is the Dell Latitude D600, which was running a 1.4GHz and 256mb of ram. It achieved a nice 79 fps from Unreal Tournament 2003. Double that of the notebooks running the Intel Extreme with 64mbs of shared ram.
One final notebook that I am going to use to make my point that the 9000 is better than the Intel Extreme 2, is the Hp compaq Nc6000. A unit running a 1.6Ghz with 512mb of ram, along with a 64mb ATI 9000, achieved 113fps in unreal tournament 2003. Compared to a Intel Extreme with 64mb of shared ram that only gets 35, or so fps.
Now to show that even an old ATI 7500 is better than the intel extreme... a IBM Thinkpad r50 with a 32mb ATI 7500 and a 1.4GHz, along with 256mb of ram, managed to get a 52.5 average FPS on UT2003.
Obviously did better than the Intel Extreme 2 despite the fact that it is relatively old.
I think it is obvious that the dedicated graphics solution on the competing notebook really made a difference, despite the fact that there was a pretty large gap from the 1.6GHz to the 1GHz.
Also something else that can be derived from these results, is that the processor speed really stopped playing a factor in these benchmarks, since the FPS were being bottlenecked by the Intel Extreme 2 graphics.
Just to recap on the scores that diff notebooks with the intel extreme 2 got...
These are all from notebooks runnning P-Ms. Ranging from 1.2-1.6GHz
Wow this was a long post