AMD and Sony show first technology of the presumed Playstation 6
Upcoming Radeon GPUs will have significantly faster ray tracing and better AI acceleration. Sony is also on board.
AMD wants to significantly expand the capabilities of its Radeon graphics units in gaming consoles, notebooks, and desktop PCs. Jack Huynh, Head of AMD's Computing and Graphics Group, together with Playstation Chief Architect Mark Cerny, presents three key innovations of an upcoming graphics architecture in the video.
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Radiance Cores
AMD is taking a leaf out of Nvidia's book to significantly accelerate ray and path tracing graphics effects. AMD wants to add so-called Radiance Cores to upcoming GPUs. These independent logic blocks take over the so-called traversal of the bounding volume hierarchy (BVH) from the shader cores.
The bounding volume hierarchy is a tree structure that checks the shader cores for matches between the virtual rays of light and the geometry in a 3D scene. This step is essential to limit the number of calculated rays and bounces and thus enable real-time ray tracing.
However, traversal is also one of the most time-consuming calculation steps, which takes time away from the shader cores for their actual rendering tasks. This is the main reason why ray tracing on Nvidia's GeForce graphics cards has so far been faster than on Radeon GPUs. Independent BVH Traveral hardware has long been available there.
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Neural arrays
AMD wants to significantly accelerate AI algorithms on its graphics units. Not through even more powerful AI units (Neural Processing Units, NPUs), but by adapting the compute units. The shader cores (previously 64 each) are located in the compute units. AMD wants to combine several compute units within a so-called shader engine to form a so-called neural array.
The compute units are more closely networked with each other than before and are intended to solve AI tasks together instead of executing AI algorithms individually in parallel. AMD expects this to result in significantly higher efficiency. New image upscalers are to be developed together with Sony, for example.
(Image:Â Sony / AMD)
Universal compression
The third innovation announced by AMD and Sony is universal compression technology. GPUs are to compress all possible data better than before to save bandwidth between RAM and the graphics unit. In the simplest case, this should save space for textures in games. But memory-heavy AI algorithms could also benefit.
Cerny promises the innovations in a new Sony console, which is due to be released in a few years' time. This is likely to be the Playstation 6, which Huynh promises will be available for all gaming platforms, including PCs. AMD has been accepting Sony's feedback for new GPU functions for generations, which then come across all platforms.
Currently, these are still "promising simulations". It is unclear whether the architecture with Radiance Cores, Neural Arrays and Universal Compression is still an offshoot of the RDNA architecture or belongs to its successor UDNA.
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