What Is the Difference Between a Clone Trooper and a Stormtrooper?

Clone troopers are genetically superior war veterans trained for wartime, while stormtroopers are largely/wholly birth-born recruits trained for peacetime.

Are clone troopers and stormtroopers the same?

Clone stormtroopers were the original elite soldiers of the Galactic Empire. After the fall of the Galactic Republic and the formation of Emperor Palpatine's New Order, the Republic Grand Army's clone troopers were re-designated as stormtroopers.

Why did they switch from clones to stormtroopers?

The main motivation for the switch to Stormtroopers was simply that cloning became too expensive. The cost of ordering, growing, and training clones was exorbitant, and the timetable for them to become full soldiers was lengthy.