For the vast majority of people caffeine is very mild compared to cocaine. Coca leaves are in the ballpark of caffeine, however you would rate that subjectively. And personally I think I would have found it hard to tell which was which in a blind test.

As a side note coca tea (or chewed leaves) are often recommended for managing altitude, and chewing leaves did seem to help with headaches I was having at > 12k feet, but again it was fairly subtle, and I am not convinced it's not just placebo/a nice distraction.