The primary problem with a tier list is it doesn't take into account an end user and his or her specific needs. Instead what it does is generalizes units, some units which have been reviewed based on more parameters than others. Nobody should use power supply tier lists because they stink. People take them so seriously, and they only cause more harm than good. They don't take into account an end user (purchaser) and his or her needs. It is also severely biased by whoever created the list. Why then did I once make this list? Because I was a fool. I now know more, I dedicate a lot of my time to becoming more intelligent and learning more about power supplies. I know a gazillion more things than I did when I made this piece of trash list. Every tier list should be deleted, they are not good at all.