What is better? a Geforce Go 7600 or Geforce 9200m GS

My reason for asking this is, i am getting a replacement laptop. the laptop i originally had, came with a Geforce Go 7600
The replacement laptop is going to have a Geforce 9200m GS.

I want to know which would be a better performer, i play Half-Life 2, CS-Source, Roller Coaster Tycoon 3, Bioshock, Doom 3, Spore.

Also my geforce go 7600 has a 4.7 vista index rating. what would the geforce 9200m GS be?

Thanks to all in advance,

jakthebomb

Now i have a question, Is the Nvidia GeForce Go 9200M a good videocard for games like CS:S? or even Cod4

Thank you