ΔE 9.1, close: similar, with a visible difference side by side. Radiant Yellow is a little lighter than Gold.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Radiant Yellow is a little lighter than Gold.
The same difference applies the other way round: Gold is a little darker.
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 Gold on the colour wheel See Radiant Yellow on the colour wheel
All matches: Gold equivalents · Radiant Yellow equivalents