Comment by lmilcin

At a risk of sounding unfriendly, the best way I know is to look at them side by side.

They are different fonts.

A lot of good looking mono fonts look very similar and there is a reason for that. As designers fine tune features for better legibility (main concern with terminal typeface) fonts converge to look roughly the same. But they still have different feel when you get a lot of text on a screen.