amd dx12 no full support

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heartofcourage

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Feb 23, 2015
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Please someone of you could tell me what is going on ? Amd said that they have full support for dx12 but now they say it won;t have .

http://techfrag.com/2015/06/05/amd-reveals-its-graphic-cards-dont-feature-full-directx-12/

I am using r9 290x though .

thanks in advance , your inputs are greatly appreciated
 
Solution
photonboy
Hi,

There's a difference between "full support" and just "support" of DX12.

There are different levels of support. For example, DX12.1 lists features that DX12.0 does not have. It's worth noting that I believe the new GTX980Ti supports DX12.2.

*It's not that big of a deal likely for a few reasons:
1) Game developers code for the COMMON denominator usually so the unsupported features of say DX12.2 are extra eye candy that some games may not even have. And,

2) The extra performance cost of these features is often significant (similar to PhysX or Tessellation) so even if you DO support the features you might not choose to use them. And,

3) DX12 games won't be common for a while anyway. It's hard to say exactly, but while 2016 will see...
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photonboy

photonboy

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Jun 20, 2006
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Hi,

There's a difference between "full support" and just "support" of DX12.

There are different levels of support. For example, DX12.1 lists features that DX12.0 does not have. It's worth noting that I believe the new GTX980Ti supports DX12.2.

*It's not that big of a deal likely for a few reasons:
1) Game developers code for the COMMON denominator usually so the unsupported features of say DX12.2 are extra eye candy that some games may not even have. And,

2) The extra performance cost of these features is often significant (similar to PhysX or Tessellation) so even if you DO support the features you might not choose to use them. And,

3) DX12 games won't be common for a while anyway. It's hard to say exactly, but while 2016 will see a few titles I'd expect well under 10% to even support DX12 at all.
 
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Solution
photonboy

photonboy

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Jun 20, 2006
21,567
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85,015
http://wccftech.com/amd-confirms-gcn-cards-feature-full-directx-12-support-feature-level-111-gcn-10-feature-level-120-gcn-1112/

This is AMD, however for the most part he's probably correct:

"According to Hallock, the absence of the feature level 12_1 is no problem in principle. So the key for games features are all included in the feature level 11_1 and 12_0. In addition, most games would already geared to the console and thus hardly rely on 12_1."

Update:
I guess the GTX980Ti is DX12_1 not DX12_2.
 
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