The only thing Bey has over Rihanna is touring numbers. She’s a more successful touring artist. Rihanna was leading Bey in record sales before streaming became a thing. So I’m not sure where they stand today.
Beyonce's albums are higher sellers than Rihanna's. Rihanna didn't lead Beyonce in album sales before streaming. Pre-streaming, Rihanna's biggest selling album was Good Girl Gone Bad, which sold 2 million+ stateside and 9 million worldwide.
Rated R did like 1.1 million stateside and 3 million worldwide.
Loud did 1.8 million+ stateside and 8 million worldwide.
Talk That Talk did 1.1 million+ stateside and 5.5 million worldwide.
Unapologetic did 1.2 million stateside and 4 million worldwide.
Anti did 603K stateside and 1.1 million worldwide.
For Beyonce, I am not counting anuthing she did before Rihanna debuted.
B Day sold 3 million+ stateside and 8 million+ worldwide as did I Am Sasha Fierce. Beyonce's sales dipped with
4. Then
Beyonce sold 2.5 million+ stateside and 5 million+ worldwide. Her latest album did 1.5 million stateside and 2.5 million worldwide.