Suppose that we have two implementations of the same instruction set architecture. Machine A has a clock cycle time of 50 ns and a CPI of 4.0 for some program, and machine B has a clock cycle of 65 ns...

Suppose that we have two implementations of the same instruction set architecture. Machine A has a clock cycle time of 50 ns and a CPI of 4.0 for some program, and machine B has a clock cycle of 65 ns and a CPI of 2.5 for the same program. Which machine is faster and by how much?.