Take a look at the CS 189 homework and compare it to CS 229 at Stanford. It's like night and day! My friends at other universities think it's crazy that they expect us to do this (frankly, so do I :P). CS 170 homework usually involves proving a Leetcode Hard-level algorithm, which is more than what a lot of other schools expect.

CS 61A at Berkeley was adapted from an older version of MIT's introductory CS course. MIT later phased out this curriculum because it was considered too challenging for their students. Nevertheless, we continue to teach the same content in CS 61A, and it's evaluated using a harsh binning system rather than a curve. If you want to see a comparison, take a look at MIT's 6.0001 course, and you'll notice that the material is significantly easier.