Can Oblivion Run?

A Radeon 9950? I've never heard of such a thing. The highest end 9xxx series card was the 9800 XT. And what do you mean by secondary? Untill the Radeon X800 series (a generation newer than yours), ATI cards couldn't be run two at a time.

Im a little iffy if that's the actuall video card that you have. But still, as long as its a higher end Radeon X800 or 9xxx series, you could probably run the game, with what you have, as long as you turned down video settings.

Just got oblivion!It runs great,even with distant lands,trees,and buildings on and i can still run it on medium with great FPS.Future_Of_War

Not with an awful Radeon 9550, you can't. Maybe indoors, running the tutorial in the caves and sewers, but just wait until you start the game itself, and take that awful POS outside. It'll barely crawl, then.

On the off chance this was an Asus, Gainward, or Leadtek video card (those three tend to create their own unconventional model names), I ran a Google search. All it found were a lot of other newbies with too many 9's and too few 5's when they wrote about the dreadful 9550, plus an Asus model of an nVidia card, whose proper name was "FX 5900" (slightly faster than a 9550, but not much!) 

Remember, all it really is, at the very core of its little silicon heart, is a 9600 SE.  SE never did mean "Special Edition", not really, what it really amounts to is sh***y edition, meaning lousy (nVidia uses "LE" for their crippled GPUs).