3 ms·

How is pipeline length related to max frequency?

• enchiridion 5y ago
  Physical length the signal has to travel.
• amluto 5y ago
  It’s related indirectly. A longer pipeline tends to result in shorter stages within the pipeline. (This is the whole point of pipelining.)
  • kingosticks 5y ago
    OK, yes there's often correlation but that's it. A longer pipeline doesn't affect max circuit frequency. The other sibling comment regarding distance isn't true. regardless of how insane your feedbacks are. Physical placement tools have always handled this in my experience (as a chip designer for 10+ years).
    • deleted 5y ago
      [deleted]
    • u320 5y ago
      There is no point of lengthening the pipeline if you don't get higher frequency from it. It would just add complexity and and a higher branch mispredict penalty.
      • deleted 5y ago
        [deleted]