Is this enough to play the sims 3?

May be...

http://www.shopping.hp.com/webapp/shopping/load_configuration.do?destination=review&config_id=3266024

Yeah, those specs look good enough to play Sims 3, also on the game you can always configure the settings of the graphics and such to make gameplay better. I have a laptop with a lower processor (2.0 gHz) and RAM (2 GB) and it works perfectly after I adjusted the settings and the graphics still look good. So you should have no problem with playing.

Yes. Those specs are better than mine and it plays fine for me. You can look at the requirements in the link below.