性能

せいのう

ability, capability

JLPT N2

Character Breakdown

Understanding 性能

The word 性能 (xìngnéng) refers primarily to the functional capabilities or performance of machines, devices, software, or systems. It is commonly used in technical and everyday contexts to describe how well something works or behaves under certain conditions.

Usage Notes

性能 is often paired with specific objects like 手机 (phone), (car), or 软件 (software) to discuss their operational quality or efficiency. It emphasizes measurable or observable qualities such as speed, fuel efficiency, or optimization.

Common Collocations

Nuances

When using 性能, speakers imply a focus on practical, technical aspects rather than abstract qualities. It is more formal and technical than simply saying 功能 (function), which can be broader. Avoid confusing 性能 with 性格 (personality) despite sharing .

Summary

Use 性能 when discussing how well something functions or performs, especially in technical or product-related conversations. It helps convey precise information about capability and efficiency.

Example Sentences

The performance of this phone is very good; it runs very fast.

The fuel performance of a car directly affects fuel consumption and

Performance optimization of software can improve user experience.