Iceman9 wrote:Goldorak wrote:RTX on is way faster, yes
That's not what we are asking.
Reframing question:
Is RTX Gen 2 a unique and new technology that will require time for Otoy to re-code to utilize...or is it simply a performance improvement where it is a seamless/quick transition?
Same question for Tensor core features (denoising/upsampling/AI lights). Is 3xxx just faster, or bring something that is technologically different, requiring Octane re-writes that take time and delay user benefit?
Goldorak wrote:Iceman9 wrote:Goldorak wrote:RTX on is way faster, yes
That's not what we are asking.
Reframing question:
Is RTX Gen 2 a unique and new technology that will require time for Otoy to re-code to utilize...or is it simply a performance improvement where it is a seamless/quick transition?
Same question for Tensor core features (denoising/upsampling/AI lights). Is 3xxx just faster, or bring something that is technologically different, requiring Octane re-writes that take time and delay user benefit?
Nothing special other than perf. tuning on RT/TC cores as we have done on cuda cores before
Goldorak wrote:The RTX speed up is scene dependent, so while 2019 havana scene, octane 1,2 and 3 splash screen scenes get 2-4x speed boost, that is not the case with the the simpler octane bench scenes like idea which is a light bulb in a room, and all shading, little tracing we can push to RT.
For now, turning on RTX, getting a 20% OB boost with the existing OB4 scenes actually makes sense because it is a good measure of what almost any scene is likely to do on RTX - after all the OB4 scenes render identically with RTX on, and served as our benchmark for 5 years before RTX was a factor.
That said, the RTX on boost on Ampere for these scenes may not be the same as Turing, making classic OB potentially higher with RTX on on Ampere. We’ll have to wait until that is all public.
Beyond standard OB, we have done deep testing 40+ heavy real world scenes both on ampere, turing et al. with RTX on and off, so we now have a very good sense of the real world averages relative to classic OB. We are planning to have a future OctaneBench add more if these heavier scenes, which will likely push OB higher on Ampere/Turing relative to the 100 OB set on a 980.
We’ll share these preliminary results as well once the cards are public. But, rest assured, the official OB scores you will see for Ampere are really impressive relative to last gen, either with RTX on or off,
classic OB scenes or with new OB candidate scenes.
dobe wrote:I wouldn't hope that the graphics cards from AMD will be better than those from Nvidia. - Especially because of count of cuda cores.
the question for me, can i go with two 3080 and break the VRAM limit (10GB) by using the out of core option in octane?
out of Core
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