Monday, July 22nd 2024
Several AMD RDNA 4 Architecture Ray Tracing Hardware Features Leaked
We've known since May that AMD is giving its next generation RDNA 4 graphics architecture a significant upgrade with ray tracing performance, and had some clue since then, that the company is working on putting more of the ray tracing workflow through dedicated, fixed function hardware, unburdening the shader engine further. Kepler_L2, a reliable source with GPU leaks sheds light on some of the many new hardware features AMD is introducing with RDNA 4 to better accelerate ray tracing, which should give its GPUs a reduced performance cost of having ray tracing enabled. Kepler_L2 believes that these hardware features should also make it to the GPU of the upcoming Sony PlayStation 5 Pro.
To begin with, the RDNA 4 ray accelerator introduces the new Double Ray Tracing Intersect Engine, which should at least mean a 100% ray intersection performance increase over RDNA 3, which in turn offered a 50% increase over that of RDNA 2. The new RT instance node transform instruction should improve the way the ray accelerators handle geometry. Some of the other features we have trouble describing include a 64-byte RT node, ray tracing tri-pair optimization, Change flags encoded in barycentrics to simplify detection of procedural nodes; improved BVH footprint (possibly memory footprint): and RT support for oriented bounding box and instance node intersection. AMD is expected to debut Radeon RX series gaming GPUs based on RDNA 4 in early 2025.
Sources:
Kepler_L2 (Twitter), VideoCardz
To begin with, the RDNA 4 ray accelerator introduces the new Double Ray Tracing Intersect Engine, which should at least mean a 100% ray intersection performance increase over RDNA 3, which in turn offered a 50% increase over that of RDNA 2. The new RT instance node transform instruction should improve the way the ray accelerators handle geometry. Some of the other features we have trouble describing include a 64-byte RT node, ray tracing tri-pair optimization, Change flags encoded in barycentrics to simplify detection of procedural nodes; improved BVH footprint (possibly memory footprint): and RT support for oriented bounding box and instance node intersection. AMD is expected to debut Radeon RX series gaming GPUs based on RDNA 4 in early 2025.
247 Comments on Several AMD RDNA 4 Architecture Ray Tracing Hardware Features Leaked
So you are not going to answer my question about which one is which. K, figured.
Anyway I think I made my point anyway, your refusal to answer is telling. It's 50/50 chances, you could have just gave it a try, oh well.
Anyways, the one on the left (the one that looks at the road) doesn't have PT, but it doesn't look like the one on the right does either, so I think you are just trolling.
Now your turn
But I also think even with competitive offerings today you won't see the market being like how it was back then.
Is it at least RT max or are you using some low crap and expect me to figure out the difference? Cause both look really flat, I can't tell which is which.
But it is extremely difficult to tell a difference.
Brand loyalty!
I am just thinking it's rather curios how someone who is such a staunch advocate of RT can't or wont, out of fear of being wrong, tell the difference.
@Vya Domus What are the RT settings in your test?
Also most people do not have a clue about what RT is and what it does. It's obvious that they expect miracles like pixel shader 0 to 1.
Anyway. We'll be here when the next big thing comes, physics, material weight and behavior probably, and the same ones will be saying the same things. That it's useless like RT.