AMD confirms feature-level 12_0 for GCN maximum

csbin

Senior member
Feb 4, 2013
904
605
136
http://www.computerbase.de/2015-06/directx-12-amd-radeon-feature-level-12-0-gcn/


google translate



Nvidia's GPUs based on the Maxwell-2.0 architecture to support DirectX 12 feature level 12_0 and feature level 12_1. Older GPU support only feature level 11_0. AMD was known until now only that all Graphics Core Next graphics cards can deal with the reduced overhead of DirectX 12. Until now.

H has in an interview with Robert Hallock, Head of Global Technical Marketing at AMD, can bring in experiences that Graphics Core Next supports in the previously available versions DirectX 12 with the feature level 12_0. That all GPUs of architecture can deal with it, the manufacturers would not confirm, however.

Tonga and so also the new Carrizo-APU can do this in any case, as the GPU of the Xbox One and thus probably the Hawaii-GPU. The question is, however in Bonaire, but especially at the oldest chip, Tahiti, Pitcairn and Cape Verde. H tries in this respect still for more information.



Display


The feature level 12_1 remains for the time being the GM200- who GM204- and GM206-GPU Nvidia reserved. For Fiji, AMD is not expressed.

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.

However, these statements should be treated with caution. As long as (some) a manufacturer does not have a feature, this experience shows always important in his view. The same has, for example, Nvidia claims the feature level 11_1, which is not supported by Kepler graphics cards.
 
Last edited:

Rvenger

Elite Member <br> Super Moderator <br> Video Cards
Apr 6, 2004
6,283
5
81
Same situation when Nvidia had feature level 11.0 with Kepler. Not that big of a deal.
 

Cloudfire777

Golden Member
Mar 24, 2013
1,787
95
91
lol I thought "GCN Maximum" was their name for the upgraded/improved/new GCN architecture after reading the title :p
 

cbrunny

Diamond Member
Oct 12, 2007
6,791
406
126
Only GCN 1.1 and GCN 1.2 is confirmed for featurelevel 12.0. GCN 1.0 is still 11.1.

Do you have a source? This article in OP makes it sound like 1.0 might still get 12.0.

edit: nm

http://www.anandtech.com/show/7889/...level-graphics-programming-comes-to-directx/2

Of the big 3 GPU vendors, all of them have confirmed what GPUs will be supported. For Intel their Gen 7.5 GPUs (Haswell generation) will support Direct3D 12. As for NVIDIA, Fermi, Kepler, and Maxwell will support Direct3D 12. And for AMD, GCN 1.0 and GCN 1.1 will support Direct3D 12.

edit2: err wait.. is direct3d 12 the same thing as directx12?

edit3: meh. Google'd it and many sources claiming all GCN gets DX12. I see no reason or indication or hint of suggestion that GCN 1.0 will not get it too.
 
Last edited:

Azix

Golden Member
Apr 18, 2014
1,438
67
91
I'm getting that all GCN supports 12_0 but they don't know what fiji supports?
 

DiogoDX

Senior member
Oct 11, 2012
757
336
136
Do you have a source? This article in OP makes it sound like 1.0 might still get 12.0.

edit: nm

http://www.anandtech.com/show/7889/...level-graphics-programming-comes-to-directx/2



edit2: err wait.. is direct3d 12 the same thing as directx12?
Support to DX12 is different that support hardware feature level.

Support to DX12 = GCN, Fermi, Kepler and Maxwell

Fermi and Kepler = 11_0
GCN 1.0 = 11_1
GCN 1.1, 1.2 (Maxwell1?) = 12_0
Maxwell2 = 12_1

And I believe that DX12 will use other hardware features that are not part of the feature level like assync DMA, assync compute and bindless resources.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
So, everyone with a reasonably current GPU will be fine for DX12.
 

NTMBK

Lifer
Nov 14, 2011
10,411
5,677
136
Shame that the VLIW IGP in Llano and Trinity doesn't get it, dual GPU support would be a nice speedup for those systems.
 

csbin

Senior member
Feb 4, 2013
904
605
136
Support to DX12 is different that support hardware feature level.

Support to DX12 = GCN, Fermi, Kepler and Maxwell

Fermi and Kepler = 11_0
GCN 1.0 = 11_1
GCN 1.1, 1.2 (Maxwell1?) = 12_0
Maxwell2 = 12_1

And I believe that DX12 will use other hardware features that are not part of the feature level like assync DMA, assync compute and bindless resources.

Maxwell1 is 11_0
 

csbin

Senior member
Feb 4, 2013
904
605
136
I believe it is officially 11.2 (all other 7xx cards, except 750/750Ti/745) are 11.0.

Not much difference though...

http://en.wikipedia.org/wiki/GeForce_700_series

How sub-DX12 cards will with DX12 will depend on the game and implementation of the DX code, from what I understand. Less benefits from DX12, but still should work? This part I am not an expert on...

http://en.wikipedia.org/wiki/Direct3D#Direct3D_12_levels
 
Dec 30, 2004
12,553
2
76
Support to DX12 is different that support hardware feature level.

Support to DX12 = GCN, Fermi, Kepler and Maxwell

Fermi and Kepler = 11_0
GCN 1.0 = 11_1
GCN 1.1, 1.2 (Maxwell1?) = 12_0
Maxwell2 = 12_1

And I believe that DX12 will use other hardware features that are not part of the feature level like assync DMA, assync compute and bindless resources.

only Maxwell v2 supports DX12, Mzxwell1 is along with Fermi and Kepler and don't support 12.0
 

ShintaiDK

Lifer
Apr 22, 2012
20,378
145
106
can you source that? that's the first I've heard

Yes.

7970.png

DX%20Feature%20Levels_2.jpg


If you wish you can just test it yourself with Windows 10.
 
Last edited:

RussianSensation

Elite Member
Sep 5, 2003
19,458
765
126
Not this again.....this must go back almost 15 years when Radeon 8500 had DX8.1 and GeForce 3 only had DX8.0. This stuff doesn't matter like DX10.1 didn't really matter over DX10. By the time games actually use some extended features of DX12.1 over DX12.0, most people on this site will have upgraded to Pascal and 14nm/16nm GPUs. It's the same story for the last 15 years. The GPU power and VRAM bottlenecks will creep up far quicker than the minor differences between DX12 versions. Ever try playing DX9 games with a first generation DX9 cards? GeForce 5 did support it but it was worthless for DX9 games. 9700/9800 series were miles faster of course over GeForce 5 but who really cares because people moves on to GeForce 6-7 and X800/1800/1900 series anyway because DX9 games became to demanding for 1st generation of DX9 GPUs.
 

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
Not this again.....this must go back almost 15 years when Radeon 8500 had DX8.1 and GeForce 3 only had DX8.0. This stuff doesn't matter like DX10.1 didn't really matter over DX10. By the time games actually use some extended features of DX12.1 over DX12.0, most people on this site will have upgraded to Pascal and 14nm/16nm GPUs. It's the same story for the last 15 years. The GPU power and VRAM bottlenecks will creep up far quicker than the minor differences between DX12 versions.

True.

DX12 compatibility will be mostly relevant for GCN 1.1 and Kepler+. Anything older, upgrade...:)
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
not if it's reasonably current NVidia.

I have a 2GB 7850 that I'll be keeping because it supports DX12, but the NVidia cards from that generation don't

Now we know why we have a 960 from NV.

To get the 750/Ti owners to bite on a newer DX12 card. :biggrin:
 

Flapdrol1337

Golden Member
May 21, 2014
1,677
93
91
not if it's reasonably current NVidia.

I have a 2GB 7850 that I'll be keeping because it supports DX12, but the NVidia cards from that generation don't

They'll support dx12, only they can't claim dx12_0 because they're only partly dx11_1 compliant.

even fermi will work with dx12, although I doubt many people will use it, but who knows.

dx feature levels are a mess.
 

RussianSensation

Elite Member
Sep 5, 2003
19,458
765
126
True.

DX12 compatibility will be mostly relevant for GCN 1.1 and Kepler+. Anything older, upgrade...:)

Furthermore, think about 1st wave of DX12 games. Developers are unlikely to code them with the full DX12 feature set since none of the existing consoles will support those features. If only Maxwell supports DX12.1, that's a small fraction of the PC installed userbase. You think the guys making BF5 or Deus Ex Mankind Divided would be suicidal to include DX12.1 features that run 30-50% faster on those cards thus obsoleting 99% of GPU hardware in the world for those games? Not going to happen unless NV specifically starts bribing developers to include DX12.1 (ironically how they got the developer to exclude DX10.1 in Assassin's Creed.....).

Chances are Maxwell will simply run faster in some DX12 games like those based on Unreal Engine 4 since of the relationship NV has with EPIC games. These things are actually far more likely to give NV GPUs an advantage than DX12.1 spec. If a game engine is made to favour NV's architectures from the beginning and will include PhysX and GameWorks, these things are far more quantifiable to give a particular brand an advantage.

"Studio Wildcard announced today that it is working with NVIDIA GameWorks Studios to add stunning special effects to the upcoming open-world dinosaur survival game ARK: Survival Evolved. According to the press release, both NVIDIA and Studio Wildcard will optimize the experience for PC-gamers, Virtual Reality and integrate NVIDIA GameWorks technologies. ARK: Survival Evolved is powered by Unreal Engine 4"

http://wccftech.com/ark-survival-evolved-receive-nvidia-gameworks-treatment/#ixzz3c7m9arT6"
 

DownTheSky

Senior member
Apr 7, 2013
800
167
116
Only thing this thread seems to confirm is how good AMD 7970 of a card is. Can't believe it was released almost 3.5 years ago and can effortlessly play any game near max at 1080p. Now compare it to gtx 580 and have a laugh. AMD's 8800GT.

This puppy has some grunt left in it.