What is the theoretical speedup if a singlecycle datapath is

What is the theoretical speedup if a single-cycle datapath is converted to a pipeline with 6 stages?

Solution

Best speedup you can get by pipelining it into 6 stages

Since IC and CPI don\'t change, and, in the best case, pipelining will reduce CT to 2ns:

Speedup = CTold /CTnew

              = 10ns/2ns

              = 5x Speedup