Not sure if somebody already posted this, but there are benchmarks of the Geforce go 7300 in an Asus laptop at this website:
http://www.hkepc.com/hwdb/g72m-4.htm
It's compared to a GF go 6200. The site is in chinese, but the benchmarks scores are easy to understand. Looks like it's just a bit more powerful than that 6200 from the scores.