<p>It does not vary from public to private, but rather by each individual university. Private or public only defines how the university is funded - by the state or private entities. It does not have any direct effect on the academic quality, curriculum, athletics, etc. </p>
<p>In certain fields like engineering, they are accredited by ABET that ensures standard curriculum among all accredited institutions. Thus, engineering programs are very similar at every accredited university. I believe there is a similar accreditation board for Computer science but I can’t recall the acronym.</p>