Radeon 9800 pro is the chipset, Sapphire and Celestica is the production company, ATI is the company that has the patent on the chipset. Think of it like a game. Say, Halo. Bungie studios created the game (ATI chipset) and Microsoft distributed it (Sapphire and Celestia). They produce the card and add the chipset made by ATI.
If you argue with an idiot he will drag you down to his level and beat you with experience.
I am not a fast writer.
I am not a slow writer.
I am a half-fast writer.