Gigabyte Radeon HD 7770 OC 1GB Graphics Card Review

To test power consumption, we monitor the overall power of the system through a plug-in electricity usage monitor at an idle and load state. This allows us to show the fluctuation between how much power draw the graphics card takes at idle and at load. By monitoring the overall usage of the whole system, it gives an easy comparison if you wish to do the same yourself as opposed to buying very expensive individual testing equipment.

At idle, a fairly low 107.1 Watts was consumed across our whole system, and once load was put onto the card, the overall power only rose up to 167.3 Watts. Some very impressive power figures indeed.