I spent a lot of time making this spreadsheet which was used to determine the processor that would be used in a custom firewall appliance for one of my previous employers.
I have decided to share this spreadsheet since it would be a shame to let it rot and go to waste.
This spreadsheet includes Intel Atom processors, FSB (Front Side Bus), Core Count, Cache Size, TDP (Power Requirement) , Memory Type, Memory Speed, and much more.
Enjoy
Download Link