Editing Performance Rating (section)

{{About|rating computer CPU performance|performance rating at the workplace|performance rating (work measurement)|chess ratings|rating performance (chess)}}
{{short description|Figure of merit developed by AMD, Cyrix, IBM Microelectronics and SGS-Thomson}}

The '''PR''' ('''performance rating''', '''P-rating''', or '''Pentium rating''') system was a [[figure of merit]] developed by [[AMD]], [[Cyrix]], [[IBM Microelectronics]] and [[SGS-Thomson]] in the mid-1990s as a method of comparing their [[x86]] processors to those of rival [[Intel]]. The idea was to consider [[instructions per cycle]] (IPC) in addition to the clock speed, so that the processors become comparable with Intel's Pentium that had a higher clock speed with overall lower IPC.<ref name=":0">{{Cite magazine|url=https://books.google.com/books?id=K8IS2A_xDLUC&q=%22P-Rating%22&pg=PA31|title=Trends: Cyrix Scores|last=Metz|first=Cade|date=1996-04-09|magazine=[[PC Magazine]]|publisher=[[Ziff Davis, Inc.]]|volume=15|pages=31|language=en|issue=7}}</ref><ref>{{Cite web|url=http://www.cyrix.com/corpor/press/1996/pratg-pr.htm|title=Cyrix Corporate Information -- New P-Rating System for Microprocessors Simplifies Consumer Evaluation of Personal Computers|date=1996-02-05|url-status=live|archive-url=https://web.archive.org/web/19960926233116/http://www.cyrix.com/corpor/press/1996/pratg-pr.htm|archive-date=1996-09-26|access-date=2019-12-17}}</ref>