The purpose of this study is to test the impact of supply chain management practices on supply chain performance in terms of supply chain efficiency and supply chain effectiveness. Additionally, we investigate the moderating effect of competitive intensity on the relationship between supply chain management practices and supply chain performance. Data for this research were collected from 104 manufacturing companies in Jordan. Hierarchical regressions were used to test the hypothesized relationships. The results indicate that three supply chain management practices, internal integration, information sharing, and postponement, but not supplier integration and customer integration, significantly and positively affect supply chain efficiency performance. Competitive intensity moderates the relationship between each of internal integration, supplier integration, and customer integration, and supply chain efficiency performance. The results also show that three supply chain management practices, internal integration, customer integration, and postponement, but not supplier integration and information sharing, significantly and positively affect supply chain effectiveness performance. Competitive intensity moderates the relationship between each of customer integration and information sharing, and supply chain effectiveness performance.