The cards are basically identical. I have bought a few of the Saphire OEM cards that you are talking about on Newegg. They are really good cards

If you are wanting the most bang for the buck though....take a look at the Saphire 9800 Pro in Retail box for $218, it comes with a nice game as well. If the game is one that you dont have, then it could be a good buy for you.
If it were up to me.......I would buy the Saphire Radeon 9800 Pro Retail for $218 on Newegg. But the only real difference is the game that comes bundled with the Retail package. IF you dont need the game.....get the OEM for $210
