Superscalar vs. superpipelined machines
Norman Paul Jouppi · ACM SIGARCH Computer Architecture News · 1988
The performance and implementation cost of superscalar and superpipelined machines are compared. Superscalar machines can issue several instructions per cycle. Superpipelined machines can issue only one instruction per cycle, but they have cycle times shorter than the time required for any operation. Both of these techniques exploit instruction-level parallelism, which is often limited in many applications. Superpipelined machines are shown to have better performance and less cost than superscalar machines.