There's been a lot of industry buzz lately about Intel's recent release of the Nehalem-EP processor, with many references to how Nehalem is x% better than a previous platform like Bensley, Harpertown, or Clovertown.
Okay, but how can you find out what each one of these code names refers to? Well, it turns out that Intel has a web site that allows you to enter code names for released products and then look up the relevant information. Go to http://ark.intel.com/ and enter the code name (or official name) of a current Intel product, and chances are it will be listed.
One particularly useful feature of this site is the System Design capability. For example, if you enter a processor/chipset power budget and other criteria, the site will list all matching combinations. Try it out!