What are the differences between 5/8 and 3/4 plywood for subflooring, and which thickness would be more suitable for my project?

The main difference between 5/8 and 3/4 plywood for subflooring is the thickness. 3/4 plywood is thicker and therefore stronger than 5/8 plywood. The choice of thickness depends on the specific requirements of your project. If you need more strength and durability, 3/4 plywood would be more suitable.