Which laptop would be best for sims 3

The difference between the Intel and AMD CPUs is that the Core i3 is more powerful than the A6-5200. Even at the same clockspeed the Core i3 is probably 40% more powerful. That means in the long run the Intel laptop can last you longer since over time, programs and even surfing the internet becomes more CPU intensive.

On the other hand, the A6 laptop comes with a more powerful graphics chip than what the Core i3 which relies on the integrated Intel HD 3000 graphics core. The Radeon HD 8670m is more suitable for playing games, it provide significantly more performance than the Intel HD 3000.

Despite the weak CPU core of the AMD A6, the graphics chip (Radeon HD 8670m) is much better than Intel's HD 3000. Therefore, the laptop with the AMD A6 is more suitable for playing games in general.