What is greater turbine input or output speed?

Turbine input speed refers to the rotational speed of the turbine's input shaft, while output speed is the speed at which the turbine delivers energy to the load or system it drives. Generally, the output speed can be greater or less than the input speed, depending on the design of the turbine and any gear systems involved. In many cases, turbines are designed to optimize energy conversion, which can involve changing the speed between input and output.