ΔE 7.8, close: similar, with a visible difference side by side. Stormvermin Fur is more muted, cooler than Graveyard Earth.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Stormvermin Fur is more muted, cooler than Graveyard Earth.
The same difference applies the other way round: Graveyard Earth is more saturated, 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 Graveyard Earth on the colour wheel See Stormvermin Fur on the colour wheel
All matches: Graveyard Earth equivalents · Stormvermin Fur equivalents