In a factory a new computer-controlled NCX-10 machine has replaced three machines. In the previous factory configuration, each part required two minutes of processing on the first machine, eight minutes on the second machine, and four minutes on the third machine. The new NCX-10 machine can do all three process steps in just ten minutes per part. Is the capacity of the NCX-10 machine greater than, less than or equal to that of the original machine group? Explain.