How many The Sims 3 packs do you play with at the same time?

When I play Sims 3 I play with all of the EPs ( and most stuffpacks and store content) at Ultra settings, Windows 7 Bootcamp on an old (2009) MacPro. And a truck load of cc & mods. It’s grand.

I’d say test it out per pack if your computer has at least the minimum requirements. Keep adding packs if it’s still running fine.