Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

They seem exactly the same to me, but the wikipedia page on Superscalar CPU architectures says "While a superscalar CPU is typically also pipelined, pipelining and superscalar architecture are considered different performance enhancement techniques."

share|improve this question

migrated from stackoverflow.com Oct 16 '11 at 23:11

This question came from our site for professional and enthusiast programmers.

add comment

1 Answer 1

up vote 1 down vote accepted

The wikipedia articles for pipeline and supercalar explain these quite good.

Simply put, a pipeline starts the execution of the next instruction before the first has completed - but instructions are executed still in series and in order.

A superscalar architecture can start two or more instructions in parallel in one core, and independent instructions may get executed out-of-order.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.