Embodiments of the invention broadly contemplate systems, methods, apparatuses and program products providing a power management technique for an HPC cluster with performance improvements for parallel applications. According to various embodiments of the invention, power usage of an HPC cluster is reduced by boosting the performance of one or more select nodes within the cluster so that the one or more nodes take less time to complete. Embodiments of the invention accomplish this by selectively identifying the appropriate node(s) (or core(s) within the appropriate node(s)) in the cluster and increasing the computing capacity of the selected node(s) (or core(s) within the appropriate node(s)).