Nvidia 3000 series support

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Nvidia 3000 series support

Postby Iceman9 » Sat Aug 29, 2020 1:51 am

Iceman9 Sat Aug 29, 2020 1:51 am
I assume Otoy employees are unable to comment on Otoy's support of the new Nvidia cards until Monday, but after the new announcements I believe a number of us would like to hear about what we can expect as far as compatibility.

-Does the 3000 family's new "traversal coprocessor*" change RT rendering? Is it an addition? If so is it likely to take weeks, months, or years to fold into Octane?

-Does new Tensor core generation change anything for denoising/upsampling?

Big Picture: Will early 3000 adopters enjoy *all* the card's new features, or need to wait 6-12 months to benefit?

*My hunch:
traversal coprocessor gonna be huge once it's actually employed by renderers.
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Re: Nvidia 3000 series support

Postby Iceman9 » Tue Sep 01, 2020 7:55 pm

Iceman9 Tue Sep 01, 2020 7:55 pm
Jules, comments?
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Re: Nvidia 3000 series support

Postby pegot » Tue Sep 01, 2020 8:16 pm

pegot Tue Sep 01, 2020 8:16 pm
RTX 3080 and 3090 come out 9/11 and or 9/17 I think. Would be great to get some preliminary info for those considering being early adopters. Will Octane even work with them out of the gate? Will we have to wait months and months? Has any preliminary testing in partnership with NVIDIA ben done?
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Re: Nvidia 3000 series support

Postby Tag12345 » Tue Sep 01, 2020 9:44 pm

Tag12345 Tue Sep 01, 2020 9:44 pm
Was hoping for the same ^^
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Re: Nvidia 3000 series support

Postby Goldorak » Tue Sep 01, 2020 11:52 pm

Goldorak Tue Sep 01, 2020 11:52 pm
sorry I always assume everyone follows the social media threads!

Yes, we have Octane 2020.1.5 (our next) fully optimized for 3090/Ampere and the results are pretty crazy. I can’t share more until NVIDIA shares the OB scores themselves or the cards are public.

There will be a new OctaneBench 2020.1.5 we have to release that you will need to test Ampere OB speed. The new OB will by default use RTX on (as will Octane 2020.2). It’s a good bet your scenes won’t be slower w/RTX on than the OB test scenes with RTX on, as they really don’t push the RT cores much.

For reference with 2020.1.5 OctaneBench:

- with RTX on, a 2080 Ti FE gets 352 OB (from 312 OB) and a low end 2080 Ti gets 315 OB (from 270 OB with RTX off).

- The GTX 980 still gets ~100 OB, and a 1080 Ti about ~200 OB (neither uses RTX)

- The Ampere A100 on GCP gets ~510 OB (it also doesn’t have RTX cores), and handily beats the Titan V’s ~400 OB, which was the highest scoring NV GPU before Ampere.
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Re: Nvidia 3000 series support

Postby Timmaigh! » Wed Sep 02, 2020 12:57 am

Timmaigh! Wed Sep 02, 2020 12:57 am
And how does 3090 conpare to A100? Is it faster, both RTX on and off?
Can you share at least that?

BTW how is 2080 Ti with RTX on 350 OB points now? Was it not like 800? Or that was true only for that other Version of OB with scenes taxing RT Cores more? In other words, if the RT hardware is not utilized enough, the speedup is not there and therefore neither Is the significantly Higher score? Please elaborate.
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Re: Nvidia 3000 series support

Postby Goldorak » Wed Sep 02, 2020 1:21 am

Goldorak Wed Sep 02, 2020 1:21 am
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.
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Re: Nvidia 3000 series support

Postby jimho » Wed Sep 02, 2020 2:23 am

jimho Wed Sep 02, 2020 2:23 am
nVidia presents so called "2nd Gen RTX", any comments on that?

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Re: Nvidia 3000 series support

Postby Goldorak » Wed Sep 02, 2020 9:29 pm

Goldorak Wed Sep 02, 2020 9:29 pm
RTX on is way faster, yes
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Re: Nvidia 3000 series support

Postby Iceman9 » Thu Sep 03, 2020 12:08 am

Iceman9 Thu Sep 03, 2020 12:08 am
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?
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