Shamino’s comments on the heat development of GeForce GTX 480 are extra interesting. With 1.55V GPU voltage and shader clock at 2330MHz he experienced graphics artifacts that are common with overheating cards. The temperature at the time was -170°C in the LN2 pot, which says a lot about the extreme heat coming from the card.
Liquid helium might be needed to reach the maximal potential of NVIDIA’s new graphics circuits and then we’re approaching temperatures near absolute zero.
Shamino didn’t reveal any exact numbers on the power consumption but he mentions that you need to handle around 500W power at these clock frequencies and voltages. A the least to say staggering number, although estimated. With a dual-socket system he achieved the following score, among others;