The GDP standards will depend on the granting institution. Some use an absolute GDP threshold (like above 3.5 or 3.7), while others take a segment of the best students (e.g., the top 5% of all students, ranked by GDP). Other criteria, in addition to raw GPA, may be considered as well. For instance, to be awarded summa cum laude at the University of Pennsylvania, students must have a 3.8 GPA or higher. By contrast, Michigan’s Law School requires a GPA of 4.0. Harvard takes the top 4-5% of its student body as summa cum laude.