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Difference between revisions of "p-rating"
(Created page with "{{title|Performance Rating (P-Rating)}} '''PR''' or '''P-Rating''' ('''Performance Rating'''; often mistaken for "Pentium Rating") was a rating system that allowed various x...") |
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| − | '''PR''' or '''P-Rating''' ('''Performance Rating'''; often mistaken for "Pentium Rating") was a rating system that allowed various [[x86]] manufacturers to gauge the performance level of their [[microprocessor]]s against equivalent {{intel|Pentium (1992)|Pentium}}-level performance. PR was introduced | + | '''[[name::PR]]''' or '''[[name::P-Rating]]''' ('''[[name::Performance Rating]]'''; often mistaken for "Pentium Rating") was a rating system that allowed various [[x86]] manufacturers to gauge the performance level of their [[microprocessor]]s against equivalent {{intel|Pentium (1992)|Pentium}}-level performance. PR was introduced on [[first announced::February 5, 1996]] in a collaborated effort by [[designer::AMD| ]][[AMD]], [[designer::IBM| ]][[IBM]], [[designer::SGS-Thomson| ]][[SGS-Thomson]], and [[designer::Cyrix| ]][[Cyrix]] to provide a way to report processor performance. |
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| + | == Measuring P-Rating == | ||
| + | Performance rating was obtained by: | ||
| + | |||
| + | # Obtain a representative target system that supports both the {{intel|Pentium (1992)|Pentium}} and Cyrix/IBM/AMD processor (e.g. {{amd|Am5x86}} / {{amd|K5}}). | ||
| + | # Run [[Winstone 96]] using the Pentium Processor and record the scores for the various frequencies. | ||
| + | # Defragment the hard disk after each test run | ||
| + | # Replace the Pentium processor with target processor (e.g. {{amd|Am5x86}}). | ||
| + | # Run Winstone 96 using the target processor and record the score for this processor. | ||
| + | # Compare the Winstone 96 score you get against the Pentium processors. The target processor's P-Rating is based on the highest freqeucny of the Pentium processor that the target processor's Winstone score surpasses. | ||
Revision as of 15:52, 21 August 2016
PR or P-Rating (Performance Rating; often mistaken for "Pentium Rating") was a rating system that allowed various x86 manufacturers to gauge the performance level of their microprocessors against equivalent Pentium-level performance. PR was introduced on February 5, 1996 in a collaborated effort by AMD, IBM, SGS-Thomson, and Cyrix to provide a way to report processor performance.
Measuring P-Rating
Performance rating was obtained by:
- Obtain a representative target system that supports both the Pentium and Cyrix/IBM/AMD processor (e.g. Am5x86 / K5).
- Run Winstone 96 using the Pentium Processor and record the scores for the various frequencies.
- Defragment the hard disk after each test run
- Replace the Pentium processor with target processor (e.g. Am5x86).
- Run Winstone 96 using the target processor and record the score for this processor.
- Compare the Winstone 96 score you get against the Pentium processors. The target processor's P-Rating is based on the highest freqeucny of the Pentium processor that the target processor's Winstone score surpasses.