Let's cut right to the chase: Garlic powder is simply dried and ground garlic cloves. As it's a dried product, the flavor is more concentrated, and only about ¼ teaspoon of the product is needed to get the same flavor result as 1 clove of fresh garlic.
Garlic salt, on the other hand, is salt (usually, flaky kosher or sea salt) mixed with garlic powder at about a 3-to-1 salt to garlic ratio.
