Pemalite said:
There will be a gen-on-gen improvement in RT.. That's not really up for debate as it's what nVidia and AMD are concentrating on in their GPU designs currently. (And A.I) Sorry mate, you lost me there - of course it will be improvements, and of course AMD and nVidia are focusing on RT and AI - KeplerL2's leak states UDNA is 2x over RDNA4 per CU, that's what I was referring to.
HoloDust said:
So compared to current gen consoles (which are RDNA2 with very poor RT, with no dedicated AI hardware), this will be humongous leap in those particular aspects (compare that to very modest 20% per CU increase in raster over RDNA4, which is already way ahead of current gen consoles). |
That's actually not true.
RDNA2 actually has a Ray accelerator in each CU.
RDNA3 actually keeps the single Ray accelerator in each CU, but tends to offer more CU's or clocks at every Tier... Plus a few efficiency improvements in the RT accelerators, but that wasn't the focus of the design... Which is why in RT the jump between the 6600XT and 7600XT wasn't massive.
https://gamersnexus.net/gpus/amd-radeon-rx-7600-xt-gpu-benchmarks-review-power-efficiency-gaming#7600-xt-ray-tracing-benchmarks
With RDNA4 - AMD implemented a crap-ton of improvements, but still kept the single Ray Accelerator per CU... Improvements like a doubled intersection engine in each Ray Accelerator (Which allows for more ray-box and ray-triangle intersections per cycle) and a wider BVH as well as BVH compression and more.
https://chipsandcheese.com/p/rdna-4s-raytracing-improvements
And despite the same number of CU's and Ray Accellerators... I still saw an upwards of a 4x-5x improvement in RT heavy games like Oblivion Remastered and Cyberpunk at 1440P ultra settings. (But limited VRAM likely played a role in that on the 6600XT)
https://www.techspot.com/review/2996-amd-radeon-9060-xt/
Considering the de-focus on raster and priority focus on RT and A.I... A doubling in RT over the RDNA4 parts would be entirely what I would expect for next-gen UDNA GPU hardware... Especially if AMD -finally- re-aligns how many ray accelerators they have in their parts.
Again, you lost me here again - RNDA2, which is in current gen consoles, is RT capable (never said otherwise), but it's performance is piss poor. RDNA4 is massive improvement over it ("way ahead over current gen consoles" from original post), and according to leak, UDNA is 2x that per CU. And KeplerL2 has good track record, so very plausible.
So, to be honest, not really sure what you're really contesting here. |
