Microsoft Standardizes Shader Execution Reordering in DirectX: Intel Arc Sees Up to 90% Ray Tracing Boost

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David_Schroth

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Ray tracing performance on PC just got a quiet but significant push forward. Microsoft has officially standardized Shader Execution Reordering in the DirectX Agility SDK 1.619 release, making SER a required feature in Shader Model 6.9 and opening a path for GPU makers to expose its benefits far more broadly than before. The performance story […]

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Now what we need is all GPU vendors to release SER ready drivers so we can have a proper showdown.

EDIT: OK, this is a bit worrying: https://devblogs.microsoft.com/directx/shader-model-6-9-retail-and-more/

Intel has the best coverage of the new features sans one (OMM) but one of their preview features is only available on Lunar/Panther Lake iGPU.

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I have a bad feeling about this. I hope this doesn't mean that there won't be any future dGPUs from Intel.
 
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I got turned off when I saw: AMD Radeon™ RX 9000 series supports API but doesn’t reorder.

I have a RX 9060 XT. Not acceptable when Intel is doing it.
 
Grimlakin said:
Yea I am a bit curious how AMD was just ignored here.
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From the Tech Spot article

Nvidia introduced SER with the RTX 4000 series GPUs in 2022 and doubled the feature's efficiency with RTX 5000 GPUs. Microsoft previewed SER's standardized implementation in DirectX last year but has now made it a mandatory component of Shader Model 6.9.


This will make implementing the feature easier for developers and extend its benefits to Intel Arc Battlemage. AMD Radeon RX GPUs currently do not include hardware SER support, but future generations likely will.
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Grimlakin said:
Well ****..
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For raster and vram my Radeons are aging great. Good thing that's what I bought them for. But that's not enough to make fine wine in the 2020s. I'd give it to RTX but cheesing on the vram and FG is not fine wine either. 20 series is perhaps deserving, as it is 8 years old, still gets full driver support, even if no optimizations, and the option to use TM DLSS on my EVGA 2070 super. VRAM is acceptable for a card that old too. And the flagship 11GB was a lot for the time.

ARC is the most deserving though IMO. It embodies the premise of fine wine i.e. keeps getting better with age. Alchemist is over 4 years old and still getting full driver and feature support. Now we read it may see a big boost in RT for new titles.
 
GodisanAtheist said:
AMD, never misses a chance to miss a chance.
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Although they and Intel both had DisplayPort 2.x before nVidia did. I think AMD also had HDMI 2.1 before nVidia did. AMD fully supported low-level APIs like D3D12 and Vulkan before nVidia did. And in those days nVidia didn't have full support, for example Async Compute was faked in software. It wasn't until Turing that nVidia caught up with things like that. So AMD hardware not yet supporting SER is a surprise to me.
 
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