quite different, one is to aide people who are oppressed or treated unequally, you know that thing called discrimination.
Both look to end discrimination. I agree with affirmative action when the system is rigged to ensure fairness I don't support handouts nor an equally adept person missing a job because he is white etc.
They are totally different but both actually have the same ideal at the core. One is much harder to execute because the world is unfair.