There is a big difference between wines from the Right Bank and Left Bank, or should I say, there are several important distinctions between Bordeaux wines from the Left Bank and Bordeaux from the Right Bank. The terroir and soil are different. The percentages of grapes planted are not the same.
The culture of each region differs and because each area has its own unique style and character, as you might expect, the wines are quite different as well. The wines from each area taste, smell, feel and age differently. And that is just to get things started.