This power management comparison looks at the latest technology from Dell's PowerEdge R720 and HP's ProLiant DL380p. Findings show a clear difference with the Dell system running at a much closer tolerance than HP. This tighter control allows customers to maximize the number of servers running on a given power budget, saving time and with improved power utilization, saving money as well. The Dell R720 offers greater power per watt and supports a much higher working temperature too.