Question CPU overhead may get lowered in new games with the new Work Graphs feature in DX12

[igor_kavinski]

Microsoft releases Work Graphs API enabling advanced GPU-driven rendering - VideoCardz.com

Agility SDK 1.613: Shader Model 6.8 and Work Graphs Microsoft released a new Agility Software Development Kit that that enables new features. The Agility SDK 1.613 comes with Shader Model 6.8 and Work Graphs support. The latter is an important feature that will promote the use of GPU-driver...

videocardz.com

From this post https://developer.nvidia.com/blog/work-graphs-in-direct3d-12-a-case-study-of-deferred-shading/

On a GeForce RTX 4090 GPU, the work graph lights the scene at 1920 x 1080 within 0.8 ms to 0.95 ms, whereas the uber shader dispatch technique takes 0.98 ms.

So roughly a 20% improvement in lighting performance in this particular sample. Hopefully developers can squeeze more out of it.

GPU support as of now:

Geforce 3000 and 4000 series
RDNA3

RDNA2 support may become available in Q2 2024 (AMD is silent about that).

No word from Intel. Keeping fingers crossed!

 

[BFG10K]

We were promised better performance and lower overhead from DX12 / Vulkan ten years ago when released. Instead most modern games run like garbage and look like a Baboon's rear end. They also consume horrific storage space and have incurable shader compilation stutter.

I just replayed OG Doom 3 from 2004 and the visuals are still amazing for a 20 year old game, with none of the aforementioned issues. Also just 1.5GB for a solid ~12 hour single player campaign with no micro-transactions, "games as a service", loot boxes, or Darth Vader skins.

 

[igor_kavinski]

I just replayed OG Doom 3 from 2004

Check out the original Riddick game. With max settings, it looks beautiful and runs at 100+ fps on even a measly Quadro in my Ivy Bridge Thinkpad.

 

[MoogleW]

Apparently Epic Games pushed for this one so there is hope for a wider adoption, especially by companies like CDProjektRed who are migrating to this engine and are not shy about trying cutting edge GPU technology. Hopefully its merged into the main branch of Unreal Engine

 

[GodisanAtheist]

Keeping my fingers crossed for RDNA2 support...

 

[igor_kavinski]

AMD showcases a demo with larger perf improvement than nVidia! https://videocardz.com/newz/amd-dem...phs-on-radeon-rx-7900-xtx-with-39-improvement

Hopefully it's just a matter of enabling this functionality on RDNA2 via a driver update.