I suggest you to buy a desktop pc. Sims 3 usually crashes on laptops, like my own one, it's got 4g ram, 2.4 cori5 cpu,but sims 3 used to work on my old pc, with 1.8cpu, 128 graphic.not good but it at least it worked. Search about sims 3 and laptop issues.it helps you find which ones not to buy.