Satire is generally framed more as a social commentary than farce, and has a higher ultimate goal to critique an aspect of society, whereas farce is created more for the sake of comedy itself.
1) Satire contains an intellectual component.
2) Farce seek only to entertain the audience
3) Farce is a more low-brow form of comedy
4) Satire criticizes a topic or issue with the intent of making it better.