性价比 xìngjiàbǐ cost-performance ratio
How to remember 性价比: 性 nature + 价 price + 比 compare = cost-performance ratio.
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How it is used
- Cost-performance ratio / value for money: 性价比高 (xìngjiàbǐ gāo) great bang for the buck.
- A ubiquitous shopping/tech word (性能 performance ÷ 价格 price) judging whether something's worth its cost.
- Colloquial and everywhere in consumer reviews; near 实惠 but more analytical/quantified.