I'm just going to cut to the chase.....in my opinion, they do not compare. What makes Chanel Graphite so special is the sparkle and shine, Revlon Carbonite has **zero** sparkle and shine. They are the same "color", meaning in the dark they look the same but who lives in the dark?!
So, in conclusion (for me) Chanel Graphite is a must have and because it's LE a back up is needed. Stat! Revlon Carbonite is a lovely shade and the formula was great, almost a one coater.
See what I mean? I know I don't need to tell you which is which!
Flash:
Direct sun: