ΔE 18.0, loose: different enough that you should pick on purpose. Ghost Green is noticeably lighter, cooler than Faded Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Ghost Green is noticeably lighter, cooler than Faded Green.
The same difference applies the other way round: Faded Green is noticeably darker, warmer.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Faded Green on the colour wheel See Ghost Green on the colour wheel
All matches: Faded Green equivalents · Ghost Green equivalents