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AMD Navi 23 ‘NVIDIA Killer’ GPU Rumored to Support Hardware Ray Tracing, Coming Next Year

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chris85oc said:
More like 4k 30 fps with raytracing enabled. Or 1080p 120 fps.

Why would they even bother with 8k? How many people even got 8k atm? Let's be real. Don't forget you also need 4 times more power to render 8k compared to 4k.
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After seeing what these devs do to the consoles nothing will surprise me tbh.
GTA 5 ran on the ps3 with 512mb shared ram. Playing last of us 2 on ps4 Pro they really isn't much on PC that is better looking tbh sure frame rate is 30fps

I would love to see what naughty dog does with the Ps5.

These consoles are listed as supporting 8k, we really are not far away from 8k.
 
Samwell said:
Raytracing is only one part of Raytracing (This sentence sounds strange, but it's really that way, i try to go on with the term "Tracing Rays"). Raytracing is split in three parts: 1. Tracing Rays, 2. Shading, 3. Denoising. With Turing Part1 is accelerated, but Raytracing is also extremely Shading intensive. It's actually the shading, which is the slow part and bottlenecking Turing the most. Shading is done using Cuda Cores and you can't accelerate it. That's why you can forget all dreams of magic 3 or 4x leaps in RT performance. Won't happen, cause it's not possible if your shading speed doesn't increase by 3, 4x too. Seperate RT cards, increasing RT cores x times etc, all makes no sense, because shading it the limit.

So what helps most? It's actually software. Engines at the moment are not optimized for RT, with consoles having hardware RT, this will change. Engines optimized for RT will help much more, than whatever amounts of RT cores.
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Well what do you know...very intriguing.
I do wonder if amd's patent comes into play moving forward? And where that Noir demo came from...
There might be back ally deals going on, lol.
 
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Grim5 said:
AMD is selling better than I expected

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Interesting. Rainforest US.

#1 RX 580
#2 RX 570
#3 GT 710 (WTF?)
#4 RTX 2070 Super
#5 RX 5700XT
#6 RX 580 (Again)
#7 GTX 1660 Super
#8 RTX 2060
#9 RX 5700XT (Again)
#10 GTX 1660
#11 RX 5700
#12 RTX 2060 KO

5700XT is outselling the 2060, that is surprising.




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Samwell said:
Raytracing is only one part of Raytracing (This sentence sounds strange, but it's really that way, i try to go on with the term "Tracing Rays"). Raytracing is split in three parts: 1. Tracing Rays, 2. Shading, 3. Denoising. With Turing Part1 is accelerated, but Raytracing is also extremely Shading intensive. It's actually the shading, which is the slow part and bottlenecking Turing the most. Shading is done using Cuda Cores and you can't accelerate it. That's why you can forget all dreams of magic 3 or 4x leaps in RT performance. Won't happen, cause it's not possible if your shading speed doesn't increase by 3, 4x too. Seperate RT cards, increasing RT cores x times etc, all makes no sense, because shading it the limit.

So what helps most? It's actually software. Engines at the moment are not optimized for RT, with consoles having hardware RT, this will change. Engines optimized for RT will help much more, than whatever amounts of RT cores.
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Yeah the Turing white paper for an RTX-op puts RT core utilisation at half the shader core time, though this would be for a game like BF V for instance.

Obviously you've over simplified for a reason but it isn't a simple as that - a single bounce pass ray traced feature will depend heavily on shader performance as well as tracing but multiple bounce indirect lighting, etc. (you aren't necessarily shading every bounce) and features like that will depend very heavily on the acceleration from RT cores, etc. a path tracing implementation game wide like Quake 2 RTX especially using more complex features will see a big boost in performance just from bumping up the RT cores while something like in BF V will need much bigger gains in both RT and shading time to see as big a performance boost.

But also the way RT hardware has been added into Turing doesn't necessarily make the most efficient use of the shader hardware which can be improved on as well.
 
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timorous said:
I can believe it if you compare the cheapest 4GB 5500XT to the most expensive RDNA2 part at 4k ultra settings (might be a lot more than 225% actually).
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AMD are pushing "Navi 2X" for a reason, they're going for 2x performance per watt for RDNA 2. If they get it, all RDNA 2 cards would be double the performance per watt of their RDNA 1 equivalents.

Maths is a weird thing though, double the performance is 100% faster. 200% faster would be 3 times as fast, so it sounds like this "225% faster" rumour is somebody doing the maths wrong.

Unless I can't do maths ;)
 
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