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What simply occurred? A partial knowledge sheet has revealed some new particulars concerning the ray tracing capabilities coming to AMD’s next-gen RDNA 4 GPU structure. Headlining the listing is one thing known as a “Double Ray Tracing Intersect Engine.” The info sheet would not delve into any particulars past itemizing the options, so we will solely guess what it means.
From the title, Double Ray Tracing Intersect Engine might imply considered one of two issues: both AMD is doubling the variety of devoted ray tracing items in comparison with RDNA 3, or these new RT engines can course of twice as many ray-triangle intersection calculations per clock cycle. Both method, this might considerably increase RT efficiency.
The leak, as shared by @Kepler_L2, hints at some under-the-hood optimizations and effectivity enhancements. RDNA 4 will pack 64-byte ray tracing nodes and features a “Ray Tracing Tri Pair Optimization.” There are additionally supposedly some enhancements coming to enhance BVH (bounding quantity hierarchy) traversal efficiency. Specifics are once more missing, but it surely’s truthful to imagine the modifications will increase efficiency whereas decreasing computational workload on the identical time.
Among the new RT options coming with gfx12/RDNA4. Most if not all of those ought to be within the PS5 Professional too ð pic.twitter.com/AO5HaxJlMK
– Kepler (@Kepler_L2) July 21, 2024
How efficient these enhancements will likely be can solely be ascertained when some actual benchmarks present up or, higher but, we get our fingers on the GPUs. However any enhancements are welcome.
AMD has lengthy lagged in ray tracing and though progress has been made, Nvidia’s choices proceed to drag forward. For example, regardless of the spectacular rasterization muscle of AMD’s newest RDNA 3 flagship, the RX 7900 XTX, when ray tracing results get cranked up, even older Nvidia GPUs just like the RTX 3090 Ti can outclass it.
These early RDNA 4 leaks place superior ray tracing capabilities as a key space of focus for AMD’s subsequent architectural revamp, which makes whole sense from a future-proofing standpoint. The improved RT {hardware} will not simply be aimed toward high-end gaming PCs both. It can doubtless make its method into the inevitable PS5 Pro console refresh too, delivering improved visuals on Sony’s next-gen machine regardless that the console is predicted to be constructed principally round RDNA 3, using RDNA 4 solely for enhancing RT efficiency.
After all, whereas mainstream RDNA 4 desktop graphics playing cards most likely will not debut till early 2025, all indicators level to an AMD vs Nvidia slugfest unfolding over the following yr. Nvidia’s personal next-gen Blackwell choices, presumably launching as GeForce RTX 50 sequence GPUs, are additionally rumored for a CES 2025 unveiling.
Whereas AMD’s RX 8000 sequence appears to closely concentrate on ray tracing, Nvidia is not resting on its laurels and will as soon as once more pull forward in that division if these enhancements are something in need of a generational leap.
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