It is, indeed, an impressive achievement, but a 4.0 GPA today doesn’t necessarily mean what it did when we were in high school, given the differential weight applied to grades in Advanced Placement courses.
“For example, an A in AP Physics is worth more than an A in a standard physics class. This difference in value is meant to account for the increased amount of work required to achieve the same grade in advanced or honors classes.
At most schools, the highest weighted GPA you can achieve is a 5.0. But there are also some schools that go up to 6.0. Either way, achieving that maximum GPA is unlikely. Why? Because it would mean that, throughout high school, you only took advanced or honors level classes and got an A in every single one” (
Weighted vs Unweighted GPA: Which One’s Best for College Admissions? — Stellarlane Blog | Where the best online tutors teach).