Gaming Laptop

Hello all,

I am in need of a new computer since my old laptop is broken. I have a budget of $500 , no more. I cannot get a desktop because I move to another location every two weeks. I have narrowed it down to two choices.

1. HP laptop with dual core A4-4300M with Radeon 7670M. I realize that the GPU can be bottlenecked by the A4. RAM is not an issue because I will buy another 4GB one from New egg.

2. HP laptop with quad core A10 processor with Radeon 7660G. The processor is more powerful but the integrated graphics is weaker than the dedicated 7670M in the laptop above.

Which laptop will give me the best performance? I play CoD and Assassins Creed.