X-bit Labs has published an article in which they explore the power consumption of the latest graphics cards, you can check it out over here.
As a result, time definitely called for a new article that would discuss the power consumption levels of contemporary graphics processors in different modes and that would use more advanced up-to-date testing approach. Since we have already developed this methodology and have been using it for quite some time, all we had to do was to apply it to all graphics accelerators available in our test lab at this time and sum up the obtained results in easy to read format for our readers, which is exactly what we did today. Our article will tell you about the energy-efficiency of the latest and existing graphics accelerators and about the electrical peculiarities of the popular GPUs during overclocking. Moreover, we hope that the obtained results will help you better understand what power supplies your gaming platform may need depending on its configuration.