If you can find one, the Sapphire one with the red PCB usually had the Samsung stuff (the 3.3ns doing as well as the 2.8, some people speculating they were remarked 2.8's). However, the 9800np has been discontinued because of all of the successful attempts at flashing to pro cards (and also they wanted another way to dump chips with defective pipelines) and has been replaced by the 9800SE as in "special olympics edition." They all have 4 of their pixel pipelines disabled and there are two versions, the ones with the 128-bit RAM and the ones with 256-bit. The latter is the one you need in order to still be able to flash into a Pro. Although there is a fairly significant chance that the other 4 pipelines disabled by ATI will be defective and result in checkerboard artifacting.
As a rule of thumb, the 9800SE boards with 256-bit RAM have the memory chips organized in the L shape around the core chipset much like the 9800np and the 9800 Pro. The one manufacturer that routinely uses the 256-bit design is Powercolor and the Sapphire ones are usually the 128-bit mem in a row above the core like the 9500/9600.
If you are smited by the overclocking gods and blessed (cursed?) with Infineon RAM, but it's in the 256-bit config, you can still flash to the Pro BIOS, but you may have to downclock the mem a bit I think.
This is all based off of info from the members of the Rage3D forums, so it may not be accurate. But in any scenario, I would recommend getting a really cheap PCI vid card and back up your 9800SE/np BIOS so that you can flash your card back.
Good luck
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