Go ahead and say this to a Swiss or French person if you want to piss them off. Yes, both dishes come from the Alps and are made by lathering foods with melted cheese. But you wouldn’t say a burger and a sandwich are the same, even if they both consist of cheese, meats and veggies stuffed between bread.
To eat fondue, you dip pieces of bread into a pot of cheese using elongated forks. Fontina, Gruyère and gouda (or a combination of the three) are commonly used, making for a smooth and creamy dipping cheese.
Raclette, on the other hand, uses, well, raclette cheese. (Though other cheeses also work — don’t tell any Swiss people we said that.) The cheese melts in parts rather than as a whole, and its usually thicker and sharper than fondue. Instead of putting the foods in the cheese, you cover everything on your plate with the flavorful scrapes.