We measured power consumption using Extech Power Analyzer 380803 device. This device was connected before the system PSU, i.e. it measured the power consumption of the entire system without the monitor, including the power losses that occur in the PSU itself. When we took the power readings in idle mode, the system was completely idle: there were even no requests sent to the hard drive at that time. We used LinX program to load the Intel Core i7-860 CPU. For more illustrative picture we created a graph showing the power consumption growth depending on the increase in CPU utilization as the number of active computational threads in LinX changed in nominal mode as well as during overclocking. Besides Gigabyte GA-P55M-UD4 we also included the results of all previously tested LGA1156 mainboards. The boards are sorted out in alphabetical order on the diagrams below.
The small Gigabyte GA-P55M-UD4 doesn’t consume too much energy. Depending on the operational mode, its power consumption is either about the same as that of other pretty energy-efficient solutions, or even a little lower. Well, this is definitely another argument in favor of Gigabyte GA-P55M-UD4.