The wattages listed above are correct. However if you don't already own it do not
buy a Thermaltake TR2. Absolute trash. Check here. I'll give you a hint. Start looking in tier 5.http://www.eggxpert.com/forums/thread/323050.aspx
Corsair, Seasonic, XFX, PC Power and Cooling, Silverstone, Enermax, OCZ or Antec for quality.
You are buying a 'K' model CPU. You will need a Z87 chipset motherboard to overclock it.