ΔE 20.9, loose: different enough that you should pick on purpose. Radiant Yellow is much more saturated, cooler than Sulfur Ore.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Radiant Yellow is much more saturated, cooler than Sulfur Ore.
The same difference applies the other way round: Sulfur Ore is much more muted, 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 Sulfur Ore on the colour wheel See Radiant Yellow on the colour wheel
All matches: Sulfur Ore equivalents · Radiant Yellow equivalents