One feature of the GeForce 6800 Ultra catches the eye immediately: there are two power connectors. We saw something like that in the Volari Duo V8 Ultra and had expected to see that here: 220 million transistors and memory working at 1200MHz call for an appropriate power supply. It is another fact that really left us flabbergasted – NVIDIA recommends that you use a 480W and higher Power Supply Unit (PSU) to ensure stable work of the new GeForces! You don’t often find such a PSU even in hardcore overclockers’ systems; they don’t definitely come in mainstream system cases. Thus, the potential owner of a GeForce 6800 Ultra has to shell out about $100-150 for a proper PSU like those from Thermaltake – I don’t think this will add popularity to the new GPUs. Fortunately, our testbed had a 550W PSU inside so we had no power-related problems running our tests.



Link: X-bit Labs