And here are some Mobile GPU ranking from the same site, along with benchmark scores. Our card is at position 14 (after all the SLi and Crossfire cards):
http://www.notebookcheck.net/Mobile-Graphics-Cards-Benchmark-List.844.0.html
Ranks are...
14: Radeon HD 4850 Mobile|3DMark06 Score: 9577
38: GT 130 Mobile|3DMark06 Score: 5816
50: GT 120 Mobile|3DMark06 Score: 5431
69: Radeon 2600 (Mobile from old iMac, and not the "PRO" version)|3DMark06 Score: 3134
96: GeForce 9400M|3DMark06 Score: 2067
110: Radeon 2400 XT Mobile (the one from the old low end iMac)|3DMark06 Score: 1735
The best SINGLE GPU card on the list is:
10: Radeon 4870 Mobile|3DMark06 Score: 10183
The best card on the list overall is:
1: Radeon 4870 X2 Mobile|3DMark06 Score: 14120
And just for laughs:
168: Intel GMA 950|3DMark06 Score: 140
It appears from what I have read that this card is as fast as the best mobile monoGPU Nvidia card.
Also, they appear to have some gaming benchmarks:
http://www.notebookcheck.net/Computer-Games-on-Laptop-Graphic-Cards.13849.0.html
All in all, I think this is pretty nice gaming GPU (with some limits of course, you won't be playing Crysis on this anytime soon).