AMD has released a huge RDNA 3 ISA Reference Guide for developers

Want to optimise your software for RDNA 3? AMD has released a guide for that  

AMD has released an ISA reference guide for their new RDNA 3 GPU architecture, a 606-page document that is designed to help developers to get the most from AMD’s latest GPU architecture. AMD has released this new guide on GPU Open, helping developers who want to enable low level optimisations within their software for AMD’s RDNA 3 shaders.

So far, AMD’s only RDNA 3 graphics cards are their RX 7900 XT and RX 7900 XTX, though more RDNA 3 based discrete GPUs are expected in the near future for both desktop and laptop platforms. RDNA 3 will also be part of AMD’s Phoenix APU, which means that RDNA 3 will be present within a lot of upcoming laptops, even those without discrete GPUs. AMD hopes to gain a lot of market share with RDNA 3, and if they can get developers to optimise their software for RDNA 3 hardware, it would help AMD greatly with their aims.

Below is what AMD has to say about their RDNA 3 ISA reference guide.

    We’re pleased to announce the availability of the AMD RDNA 3 ISA reference guide, following the release of our first RDNA 3-based GPU products. The ISA guide is most useful for anyone interested in the lowest level operation of the RDNA 3 shader core, be that shader compiler writers, tools authors, and any game or application developer that needs to optimize their shaders for the new GPU.

The guide covers the whole shader core execution model, including program state, the various wave execution models, how the shader core interacts with the memory hierarchy, the available instructions including their encodings, and lots more.

AMD has made massive strides with RDNA 3, making Radeon GPUs an options that’s worth considering for gamers, video editors, and content creators. If AMD can get software developers to optimise their software for Radeon hardware, AMD should be able to make further gains within this market, though Nvidia remains a clear leader within the workstation market. That said, AMD has gained a lot of ground, and there is no reason to believe that AMD won’t continue on this trajectory with future architectures.

You can join the discussion on AMD’s RDNA 3 ISA Reference Guide on the OC3D Forums.