AMD says it is about to undertake a “brand-new rendering strategy” with regards to ray tracing, and particularly path tracing, within the newest video games, due to a brand new devoted {hardware} block in its next-gen AMD Radeon gaming GPU tech. Developed in collaboration with Sony, AMD says the brand new devoted ray tracing {hardware}, known as the Radiance Core, will push “lighting efficiency to an entire new stage” within the newest video games.
Path tracing is one space the place the most recent AMD GPUs nonetheless considerably lag behind Nvidia’s new Blackwell chips, as demonstrated in our current Doom The Darkish Ages path tracing check. Nevertheless, AMD is clearly seeking to shut this hole with its new Radiance Core, which appears to maneuver a key space of the ray tracing pipeline to a devoted {hardware} block.
“We have spent the final two years rethinking your complete path tracing pipeline, from {hardware} to software program,” says AMD senior vp and normal supervisor of the Computing and Graphics Group, Jack Huynh. In a joint announcement with Sony PS5 lead architect Mark Cerny, proven within the video beneath, Huynh described the Radiance Core as “a brand new devoted {hardware} block designed for unified gentle transport.”
Cerny explains the important thing change with this new core, which is bringing all of the ray traversal calculations into {hardware}, fairly than AMD’s earlier tech that overly relied on the CPU and GPU shader cores for ray traversal work. “To carry out ray tracing right now, a shader program has to juggle two very completely different tasks,” explains Cerny.
“One is ray traversal, digging by complicated information constructions to find the place the tens of millions of rays being solid hit the tens of millions of triangles within the scene geometry. When there are intersections, that very same shader program has to even be doing its ordinary work of shading the scene, utilizing texture and lighting data, and the like.”
Nevertheless, the brand new Radiance Core takes on the work of calculating ray traversal away from not solely the CPU, but in addition the GPU shader cores, which Huynh explains “frees up the CPU for geometry and simulation and lets the GPU deal with what it does greatest – shading and lighting.” The consequence, in keeping with Cerny, is “a major velocity enhance” not solely from having the traversal logic in {hardware}, but in addition due to the Radiance Core working independently from the usual GPU shader cores.
Cerny additionally states that there are “different options within the works” to enhance ray tracing efficiency as effectively, together with “versatile and environment friendly information constructions for the geometry being ray traced.” If this new GPU {hardware} block can certainly allow AMD to meet up with (and even overtake) Nvidia within the path tracing stakes stays to be seen, as we’re not going to see this tech on the PC for some time but, however with FSR Redstone additionally within the works, AMD appears prefer it’s lastly closing the previous couple of gaps.
Within the meantime, take a look at our information to purchasing the most effective graphics card in the event you’re on the lookout for a GPU improve now. If you wish to run the most recent video games with path tracing, then you actually need one of many newest GPUs, however AMD’s new graphics playing cards in any other case provide nice efficiency for the cash.
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