Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributorCyclone V speed is much slower
Hello. I am new to Cyclone V. I took my design for Cyclone III and recompiled it with Quartus II web 13.1. From the timing analyzer, I can see that the maximum clock rate is only 84 Mhz while I was...
Altera_ForumHonored Contributor
Honored ContributorOk that sounds wrong. I expect a significant increase in performance for Cyclone V from Cyclone III. My guess is there are some false paths that are getting ignored in the conversion, (IE the PLL Changed, so the old SDF file isn't valid anymore).
I would look at that. If you can send a timing report for both the designs we can look at it. Pete
