Where can I find out how much power "Computer Part of the Day" uses? It's easy to do a search and find out that a system built with the part du jour uses X watts under load and Y watts when idle but I can't find resources that list the power consumption for individual parts.
To add to the confusion, I found a table at Tom's Hardware that purports to list the power used for each part (CPU, motherboard, RAM, HDD, SSD, etc.) but they don't say where they got their numbers.
For the Intel i5-370k, Intel says that the TDP is 77 watts. I find a review that says a system built with the CPU uses 67 watts at idle and over 90 watts when under load.
I'm particularly searching for information to build a new PC so I need figures for the CPU, motherboard, RAM, HDD, optical disk drive, fan(s), graphics card, and maybe even SSD.