What type of computer do you play The Sims 4 on?

I would call mine a high end machine, but you don't have to pay nearly that much to have one (mine topped out at about$800, partly because I got windows so cheap). There's some great web sites that point you in the direction of what parts to buy to build a good rig. I play Fallout 4 on ultra settings without so much as a hiccup, and the Sims doesn't really tax it other than this weird slow down I can't pin.