Vichyssoise and Gazpacho are both chilled soups, but they are quite different in terms of their origin, ingredients, and flavor profiles. Vichyssoise is a puréed soup that is traditionally made with pureed leeks, potatoes and cream, and has a smooth, creamy texture. On the other hand, Gazpacho is a Spanish soup that is typically made with tomatoes, cucumbers, onions, peppers, olive oil, vinegar and bread. In terms of texture, it can be either chunky or puréed.