NVIDIA Kepler not fully compliant with DirectX 11.1
After a discussion on a German a website, NVIDIA confirmed that the Geforce 600 series does not fully support DirectX 11.1 aka is 100% compatible. Well, it doesn't fully support the API. The GTX 680 supports DirectX 11.1 with hardware API eature level 11.0, including all optional features.
Now that does include a number of features useful for game developers such as ...
Reply directly from NVIDIA:
- Partial constant buffer updates
- Logic operations in the Output Merger
- 16bpp rendering
- UAV-only rendering
- Partial clears
- Large constant buffers
We did not enable four non-gaming features in Hardware in Kepler (for 11_1):
- Target-Independent Rasterization (2D rendering only)
- 16xMSAA Rasterization (2D rendering only)
- Orthogonal Line Rendering Mode
- UAV in non-pixel-shader stages
So basically, NVIDIA does support 11.1 features with 11_0 feature level through the DirectX 11.1 API.
"We do not support feature level 11_1. This is a bit confusing, due to Microsoft naming. So we do support 11.1 from a feature level for gaming related features."
The competitions AMD's Radeon HD 7000 "Southern Islands" GPU series is fully compliant with DirectX 11.1 (except the rebranded products from the 6000 family).
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Lol your spelling mistakes have been somewhat epic lately.

But it makes sense, the "Kepler" architecture is not even stated as being DX11.1 complaint. But I'm sure many will hope it will be; not that I can see much coming from it besides "Native 3D."
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Stuff we won't see in games, makes sense.
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If I'm reading that right it means that Kepler supports DX11.1 in the same way that DX11 supports DX10 graphics cards by virtue of being backward compatible. So any DX11.1 games would simply run as DX11 on Kepler cards even though MSI Afterburner (or whatever) would show DX11.1.
I can't say I'm bothered personally as I don't believe many games will use DX11.1 anyway and, if they do, then by that time new NVIDIA cards will be out and I'll have upgraded again anyway. As far as stereoscopic 3D goes, I cannot see it properly so I would never be interested in DX11.1 for that reason either.
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yeah 3d gaming and it performance hit = just another way for you to feel shafted by the fact that your $1000+ gpu is inadequate.
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Who cares, Most game developers arent even DX10 compliant.