Rumors have floated around following Ubisoft's announcement that it will be releasing a patch that will temporarily remove support for Direct X 10.1 for the PC version of Assassin's Creed.

This development follows numerous complaints by Assassin's Creed users of bad performance when Nvidia chips mix it up with the graphics tools and the game.

The controversial move prompted TGDaily to investigate on the matter and they've come up with an even more shocking hypothesis: Nvidia may have pressured Ubisoft into removing DX 10.1 support for Assassin's Creed.

An unnamed source who reportedly develops DX 10.0 games and is close to Ubisoft told TGDaily that "the way how DX10.1 works is to remove excessive passes and kill overhead that happened there. That overhead wasn’t supposed to happen - we all know that DX10.0 screwed AA in the process, and that 10.1 would solve that."

"Yet, even with DX10.0, our stuff runs faster on GeForce than on Radeon, but SP1 resolves scaling issues on [Radeon HD 3800] X2,” he adds.

As it stands, the latest DX version runs as well as users would want on ATI cards, but not on GeForce chips. TGDaily warns that it's still up to readers to believe what they want, but putting this information on the table was most welcome. In any case, we'll report updates as soon as they come.