Within the last decade we've seen the 80Plus certification become a widely accepted standard and further expanded into Bronze, Silver, Gold and Platinum levels as efficiency improves. Combine lower hardware power requirements with more efficient power supplies and we start to see what had been a steady upward trend in power supply size begin to level off and perhaps even decline. Where 750W or 850W may have once been the norm, we're now seeing units in the 500W to 650W range become more popular.”



Link: OCIA