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
These are completely different performance tiers, and historical periods. :roll:
They both have to pay TSMC and other components, but nvidia has to pay 10 times the R&D costs that amd spents (that was your claim, not mine), isn't it obvious that the latter can offer their products a lot cheaper?
I think what AMD is doing will work too. Both Intel and AMD know that they need to improve on RT performance and clearly AMD is on the right track. Assuming they do pull it off but no need to speculate on that right now. Just wait for samples to drop here and on other trusted sites for review.
I'm just glad to see AMD being more competitive. The current series was just underwhelming to most gamers looking to upgrade.
Even in the past when AMD have an OBJECTIVELY better videocard (I'm talking 10+ years ago) everybody still bought Nvidia....AdoredTV did a great multipart investigation on this with tons of empirical data a few years ago....and overcoming mindshare and "mentia" is not as simple as, for exmaple, cutting prices.
I like to use the example of flagship phones. I think its safe to assume that 90%+ of people who spend $1500 on a phone probably ending up using 10% of the compute power of that phone and instead buy it as a way to silently announce to the world their higher status in the Hierarchy. They'd probably be better served by a $200 phone and a $500 laptop and a $500 DSLR camera, but people still line up to spend $1500 on a phone whose hardware they'll never fully utilize... and the same is probably at play with videocards....they want all the features, but they probably won't actually use them...it's a FOMO thing. No, AMD's expenditures on R&D will NEVER have an effect on the price of OTHER manufacturers components
I bought all of them btw. Hd 4770, 5850, 6850 (that was a downgrade), 7850XT, had them all. Then they just stopped competing.
Here's a fun test : Can you tell which side is using RT ?
www.theregister.com/2006/12/06/q3_06_graphics_market/
AMD is a company. It exists to make money. It does not give a flying fuck about you. It will never do shit for you. So why, exactly, are you spending your time writing sob stories that make it look good? The number of people on this forum who have a parasocial relationship with a god damn corporation is mindblowing and horrifying in equal parts. Being a nerd is fine, being an unpaid corporate shill is not.
AMD is a company. A company that has traditionally been out-planned and out-executed by its competitors, who strangely are far wealthier. If it wants to be better than them, it needs a better plan and better execution, which surprise surprise is what my answer said. What it does not need, again because it's a god damned corporation, is your sympathy.
Come on, which is which ?
How is AMD supposed to do what everyone on this site thinks they should do when they have OBJECTIVELY fewer resources?All I was pointing out is that this is a highly multifaceted issue, and the factors I find to be most important, i.e. MONEY are the exact ones I NEVER here anyone discussing here. I'm pointing out that people like to tell companies what to do, but never address how they're supposed to do it.
Final question: Why are you getting personal and in your feelings on this? You're obviously all worked up as the contempt is seething from your words, why are you so offended? I don't think I deserve your obvious contempt.
FYI: If you look at my posting history, there are tons of times where I literally say that we should never cheer for one company or the other and that we should be cheering for these companies to split marketshare evenly because that would bring about the most competition a d would be best for us as consumers....in that sense. I cheer for AMD, but if AMD was the dominant party, I'd be cheering against them...how could you ever think that someone with an OBVIOUSLY anti-capitalist worldview (look at my name) thinks a company cares about anybody? Personally, I'm offended by how you are literally inserting motive into my comments that was never there...and again, if you look at my past comments, I'm LITERALLY the one constantly talking about parasocial relationships and consumer irrationality... you're the only one getting emotional here, like somehow you've been personally offended.
They had under 30% during that time.
Can you tell which one is which on my screenshot? Come on, say it. Your link says ATI had 63%. But does it matter? It was way higher than it is today when they were making competitive cards.