How does a non-deterministic Turing machine differ from a deterministic Turing machine in terms of computational power and complexity?

A non-deterministic Turing machine can explore multiple paths simultaneously, potentially leading to faster computation for certain problems. This makes it more powerful than a deterministic Turing machine in terms of computational speed. However, the non-deterministic machine's complexity is higher due to the need to consider all possible paths, which can make it harder to analyze and understand its behavior.