If you really want to go into detail about my laptop...
My laptop is a Gateway NV77H19u.
It's specs:
Intel Core i5-2430M (2.4GHz, up to 3GHz with Turbo Boost)
Intel HD Graphics 3000
500 GB HDD (really 450GB)
4GB 1333MHz DDR3 RAM
17.3" 16:9 HD+ LED LCD *up to 1600x900 resolution*
It runs The Sims 3 Pets very fine, and I have all of the Stuff and EPs excluding Showtime and KPST *Katy Perry Sweet Treats, or what I think it is*
Recommendations depend on what EPs you have.
I heard the Pets EP has higher recommendations than the vanilla game.