Wattage needed for operation? I'm not sure to tell you the truth. But if it's TDP (Thermal Design Power) you're asking about, there are two 9950 versions in that respect. The first version had a TDP of 140W, and the second version (which this cpu is....) has a TDP of 125W.Whats the Wattage needed for the Quad? 95w or 125w?