ΔE 6.6, close: similar, with a visible difference side by side. Silver is a little darker, more muted than Interference Red (Fine). They are different kinds of paint: Golden Interference Red (Fine) is a pearl paint and Vallejo Silver is a metallic, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Silver is a little darker, more muted than Interference Red (Fine). They are different kinds of paint.
The same difference applies the other way round: Interference Red (Fine) is a little lighter, more saturated.
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 Interference Red (Fine) on the colour wheel See Silver on the colour wheel
All matches: Interference Red (Fine) equivalents · Silver equivalents