"Doom3 is up to 112% slower than the 6600GT"
- Nvidia PR doing the math. The X700 apparently renders at a negative framerate in Doom3.

DirectX 11.1 documentation online
Wednesday, September 14, 2011 | Permalink

With the public release of the Windows 8 Developer Preview the documentation for the upcoming DirectX 11.1 API has made it online as well. It's preliminary and subject to change of course, but likely the changes won't be too dramatic. The list of new features and additions is pretty long for a mere ".1" update.

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Axel
Thursday, September 15, 2011

After reading it twice it gives me the impression, that all current DX11 hardware could already be 11.1 capable.

Humus
Monday, September 19, 2011

Yeah, I suppose. A new driver would be required though. I hope they backport the new WDDM 1.2 driver model to Vista/Win7 so DX11.1 doesn't become a Win8 exclusive, because that would pretty much ensure nobody would use it.