Performance Rating

The PR (Performance Rating) system was a figure of merit developed by AMD and Cyrix in the mid-1990s as a method of comparing their x86 processors to those of rival Intel.

Branding

The first use of the PR system was in 1996, when AMD used it to assert that their AMD 5x86 processor was as fast as a Pentium running at 75 MHz. The designation "P75" was added to the chip to denote this.

The letters PR stood for "Performance Rating", but many people mistakenly thought it stood for "Pentium Rating", as the PR was often used to measure performance against Intel's Pentium processor.

Later that year, Cyrix also adopted the PR system for its 6x86 and 6x86MX line of processors. These processors were capable of handling business applications under Microsoft Windows faster than Pentiums of the same clock speed, so Cyrix PR-rated the chips one or two Pentium speed grades higher than clock speed. AMD did likewise with some versions of their K5 processor, but abandoned the system when it introduced the K6.

Performance rating (work measurement)

Performance rating is the step in the work measurement in which the analyst observes the worker's performance and records a value representing that performance relative to the analyst's concept of standard performance.

Performance rating helps people do their jobs better, identifies training and education needs, assigns people to work they can excel in, and maintains fairness in salaries, benefits, promotion, hiring, and firing. Most workers want to know how they are doing on the job. Workers need performance feedback to work effectively. Accessing an employee timely, accurate, constructive feedback is key to effective performance. Motivational strategies such as goal setting depend upon regular performance updates. While there are many sources of error with performance ratings, error can be reduced through rater training and through the use of behaviorally anchored rating scales. In industrial and organizational psychology such scales are used to clearly define the behaviors that constitute poor, average, and superior performance.

Glossary of chess

This page explains commonly used terms in chess in alphabetical order. Some of these have their own pages, like fork and pin. For a list of unorthodox chess pieces, see Fairy chess piece; for a list of terms specific to chess problems, see Glossary of chess problems; for a list of chess-related games, see Chess variants.

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I

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K

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P

[adjective: prophylactic] Prophylactic techniques include the blockade, overprotection, and the mysterious rook move.

Q

R

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References

Bibliography