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Aren't we mixing 2 things here? Or maybe 3?
1) Ray tracing (RT) is a basic rendering technique. It's been around for decades and is fundamental - not useless or unusable as one of AMD fanboys claims.
2) Real-time ray tracing (RTRT) is... RT in real time ;-), i.e. fast enough (whatever that means).
It's been around for a while, but used for previews - not final renders. Previews are greatly simplified - they ignore some materials and some effects. Also the resulting live render is usually low-res and under 30fps.
3) RTRT in games means it has to be efficient enough for processing all effects, at high-resolution (1080p+) and high frequency ( has to be acceptable for gaming, i.e at maybe 1080@60fps, maybe 4K@30fps...
You're talking about general processing implementation, i.e. what standard GPU cores do.
Nvidia used an ASIC and it's just way faster - just like tensor cores are way faster for neural networks.
Everything else you've said is more or less correct.
If one wants to combine RTRT with 4K@60fps, then doing that on GPGPU is 10 years away from now. But on ASIC it should be possible withing 1-2 generations, i.e. 4 years tops.
But thanks to RTX cards, you don't have to wait 10 years. For mere $1200you can already make your games look as if it's 2028 (just at 1440p tops).
And when you buy your next RTX card in 2021 for another $1200, it should be OK for 4K@60fps.
There's just no way around it. AMD will have to respond with a similar tech, ignore RTRT ("Who needs realism? We're so romantic!") or magically make Navi 4x faster than Vega.![]()
No need to argue semantics with me. You know exactly what I'm getting at
![Wink ;) ;)](https://tpucdn.com/forums/data/assets/smilies/wink-v1.gif)