Efficiency vs Performance

Quand utiliser chacun en anglais, avec le sens, le registre et des exemples.

Efficiency

Top 2000 (courant)C1noun

Performance

Top 1000 (très courant)B1noun
Le plus courant: Performance
 EfficiencyPerformance
Prononciation🇬🇧 /["/ɪˈfɪʃnsi/"]/🇺🇸 /["/ɪˈfɪʃnsi/"]/🇬🇧 /["/pəˈfɔːməns/"]/🇺🇸 /["/pərˈfɔːrməns/"]/
SensHow well a task is done with the least waste of time and resources.How well someone does something, especially in a play or a competition.
ExempleThe efficiency of the new engine significantly reduces fuel consumption.The performance of the team improved significantly after the new coach was hired.
RegistreNeutreNeutre
FréquenceTop 2000 (courant)Top 1000 (très courant)
Niveau CEFRC1B1
Nature grammaticalenounnoun
Collocationsruthless, great, high, achieve, maintain, demonstrate, drive, measures, benefits, with efficiency, efficiency in, ruthless, great, high, achieve, maintain, demonstrate, drive, measures, benefits, with efficiency, efficiency inlive, public, evening, give, put on, stage, feature somebody/​something, art, poetry, artist, in performance, brilliant, convincing, dazzling, deliver, give, produce, benchmark, indicator, level, performance as, performance from, performance on, a level of performance, a measure of performance, a standard of performance, high, maximum, optimal, affect, influence, assess, boost
Antonymesinefficiency, wastefulness, unproductivenessfailure, inactivity
Erreurs fréquentesConfused with 'efficacy', which refers to the ability to produce a desired result., Using 'efficient' instead of 'efficiency' incorrectly in phrases., Overusing in casual conversation where simpler terms like 'speed' might suffice.Confused with 'performancer,' which is incorrect., Using 'performance' as a verb instead of a noun., Confusing types of performance, like sports vs. arts.
Notes d'usageUse 'efficiency' in both formal and informal contexts when discussing productivity. Avoid using it in casual conversations that don't concern work or processes.Use 'performance' when discussing shows, competitions, or work output. It's neutral, suitable for both casual and formal settings, but avoid in very casual contexts.

Questions fréquentes : Efficiency vs Performance

Quelle est la différence entre Efficiency et Performance ?

Efficiency: How well a task is done with the least waste of time and resources. Performance: How well someone does something, especially in a play or a competition.

Lequel est le plus courant : Efficiency et Performance ?

Performance est le plus courant dans l'anglais de tous les jours.

Lequel est le plus avancé : Efficiency et Performance ?

Efficiency est le niveau le plus élevé, à C1, sur l'échelle CEFR.

Efficiency et Performance sont-ils au même niveau CEFR ?

Efficiency: C1, Performance: B1 sur l'échelle CEFR.

Quelle est la nature grammaticale de Efficiency et Performance ?

Efficiency: noun, Performance: noun.

Peux-tu montrer un exemple de chacun ?

Efficiency: The efficiency of the new engine significantly reduces fuel consumption. Performance: The performance of the team improved significantly after the new coach was hired.

Puis-je utiliser Efficiency et Performance de façon interchangeable ?

Pas toujours. Efficiency et Performance sont proches et se recoupent parfois, mais elles diffèrent par le registre, la fréquence et l'usage, donc remplacer l'une par l'autre peut changer le sens ou le ton. Regarde les différences ci-dessus avant de substituer.

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