Gamespot.com has published an interview with Ujesh Desai, General Manager of Desktop GPUs for Nvidia relating to nVidias recent lowering of the GeForce 6800’s PSU-specfications, where they among others ask him why nVidia has chosen to lower the specifications. It turns out that Nvidia’s newest GPU doesn’t consume as much power hungry as most people thought. In fact a good 350 W is enough if you’re not going to do any heavy overclocking.
“GameSpot: What are the reasons behind the 480W power supply recommendation for the GeForce 6800 Ultra?
Ujesh Desai: We have to spec our products for the absolute worst case, not the best. Marginal power supplies and poorly ventilated cases must be taken in to account. We are traditionally over-cautious /…/ As long as the power supply design is robust, we’ve seen that standard 350 Watt power supplies are sufficient for running the GeForce 6800 Ultra. “
Read more here.