Seriously tho, A boxed CPU probably comes with a manual for installing it (why i dont know!) and loadsa leaflets, whereas an OEM (or unboxed) CPU comes on its loansome in an antistatic bag. The OEM ones are the same chip just cheaper cos they dont come with all of the bumf!
[I think OEM is the right term to use, if not im sure someone will correct me!]
Retail (boxed) gives you a warranty, certificate of authenticy, heatsink and fan. OEM (correct, silent_bob ) offers no warranty, no certificate, and no heatsink/fan. I'd opt for the retail if you can get it at a reasonble cost.
over here in Canada, OEM comes with waranty, but it will be from the place of sale, not the manufacturer, and its usually shorter. I myself would save the $X and get the OEM version unless there was only a small difference in price. I figure if something is gonna fail, it will do so pretty quick so i can get a new one under warranty.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS