Planetside 2 and BF3 will both run fine at low-medium settings with that laptop. It is surprisingly powerful for a laptop that belongs to someone's mother. Alienware charges $1000 for a system with a GTX 650M, and that is with an i5 instead of an i7.
My mom always hears me talking about Intel/AMD/nVidia so as soon she heard i7 with dedicated graphics all she could think was "Ohh, my daughter loves these doohickeys, better hand Best Buy my wallet! I shouldn't worry about saving for a rainy day, We'll never have to worry about steppin in da poo poo."