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Is my laptop GPU (really) Dx12 compatible? - Printable Version

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+--- Thread: Is my laptop GPU (really) Dx12 compatible? (/Thread-is-my-laptop-gpu-really-dx12-compatible)

Is my laptop GPU (really) Dx12 compatible? - Intruso - 11-04-2016

My GPU is a nvidia 820m (also I have an Intel hd4600).

Nvidia's official info says my GPU supports Dx12, but I'm afraid its support level is more like an "almost Dx12" and lacks of necessary features of the real dx12. I'm not sure, but if it supported Dx12 the DDI Direct3D string of Dxdiag would say "12" instead of 11.4 (like my other Intel GPU, which can actually run dx12).

[Image: 20gy5xs.jpg]

PS: In some webs I read it also supports Vulkan, but it's not true. Sad

RE: Is my laptop GPU (really) Dx12 compatible? - admin89 - 11-04-2016

Your GPU is a GT 540M rebrand , a Fermi GPU . So it doesn't support Dx12 and Vulkan
http://www.notebookcheck.net/NVIDIA-GeForce-820M.108477.0.html
Intel HD 4600 does support DX12 and Vulkan however you won't notice any performance gain due to the lack of feature level
The bare minimum requirement for DX12 and Vulkan is Kepler .
Nvidia architecture : Tesla < Fermi < Kepler < Maxwell < Pascal

RE: Is my laptop GPU (really) Dx12 compatible? - Intruso - 11-04-2016

Just what I was fearing.

Thanks for your answer.

RE: Is my laptop GPU (really) Dx12 compatible? - leolam - 11-04-2016

Quote:Intel HD 4600 does support DX12 and Vulkan however you won't notice any performance gain due to the lack of feature level
For Vulkan, wouldn't it still be technically more efficient and have less overhead?

RE: Is my laptop GPU (really) Dx12 compatible? - Helios - 11-04-2016

At the very least, Vulkan would be a little faster due to a better code design in the backend.

RE: Is my laptop GPU (really) Dx12 compatible? - admin89 - 11-05-2016

I think I should fix my statement . It seems that Intel HD 4600 does not work with Vulkan , there is no Intel GPU option when I select Vulkan
Edit : I found this
https://communities.intel.com/thread/104113
Only Skylake GPU (Intel HD 530) or newer Intel GPUs work with Vulkan

RE: Is my laptop GPU (really) Dx12 compatible? - leolam - 11-05-2016

Do note that is purely a limitation on Windows, i.e. Mesa supports Vulkan on, I think, SB+? (though it'll work better with gen8)