I would say yes to Halo, yes to NFS most wanted, yes to GTA SA
Halo is an old game, I think it would run on medium setting with GMA3000
NFS Most Wanted needs GF2 MX as minimum system requirement, GMA3000 is better than GF2 MX, it will run it but on very low settings and it will look like 10 years old racing game
GTA SA might run on low setting with GMA3000