Octane Builds

jorge dorlando

thd777 said:

jorge dorlando said:

Yes, and no ...
Nvidia Quadro K6000 12gb = CUDA Cores 2880
Gtx Titan Z 12gb = Cuda Cores: 5.760 (2880 por GPU)
Recalling that
The issue of Octane in DUAL video cards, it is only with relation to the memories of both.
But not with relation to cuda
you can put 2 different video cards in your computer (gtx 560 + gtx 690), octane will use the memory of a video card only, but will use all cuda cores of both ...
one gtx 690 with dual disabled will use the memory of the first video card only, but will enjoy all the cuda cores.
in a Titan Z, Octane will use 6GB of memory only, but will use all cores Cuda 5,760 (2880 for each GPU)

That is not quite right. You can use two different cards, but Octane has to use the VRAM in each card which means that the card with the lower amount of VRAM determines your maximum available VRAM. For example in my system I can use both the GTX 670 2GB and the GTX 780 3GB for rendering at the same time, but then my max VRAM will be limited to what ever is available o n the GTX 670 (about 1.5 GB because it also drives the displays).
Ciao
TD

You're right! I misinterpreted what the team octane replied months ago:

Hi Jorge,

No, the scene is uploaded into each GPU's memory so it can work on it. With octane, GPU's cannot access other GPU's VRAM (or the main system memory).
So far, we have not done this because of the potential speed drop. Accessing another GPU's memory, or the system memory is far slower than a GPU accessing it's own memory.

So for octane, if you have a 4GB card and a 6GB card rendering, your maximum scene size is 4GB.
For speed, they are added together, but not for memory. For memory it is the least capable card that limits you.

Thanks
The OctaneRender Team

kyoto kid

...however, where texture resolution is concerned, total memory is more vital than total cores.

JohnDelaquiox

So far it looks like this 4gb 650 is the best card I can afford at the moment. When I have the money to get a better one I will put one or two of these in my home build.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814125509

JohnDelaquiox

Just wanted to update everyone on this thread.

I saved up and purchased a GTX 780 and I am loving it and am hoping to upgrade to either a Titan or a second GTX 780.

 

scatha

I'm currently doing a project for a game site, which if all goes well is going to make me enough money to get my hands on a Titan X (yes, the 12Gb) card.

larsmidnatt

i7 4770K, Win7 Pro, 32GB Ram
Display Intel HD 4600
GTX 760 2GB, 660Ti 3GB

I have a spare 760 sitting around...system was supposed to be two 760's but I still use Octane render 1.x sometimes and it does not support OOC memory and I have some scenes from 1.x days that need that extra Vram. The 660ti is a smidge faster than the GTX760 anyway.

Video Memory is not as important with 2.X octane as you have the ability to store data in regular ram. So I don't need to buy fancier more expensive cards to fit large scenes into my GPU renders. There does not seem to be a measurable speed impact for using the OOC memory feature, Octane is still amazingly fast :)
 

 

JohnDelaquiox

scatha said:

I'm currently doing a project for a game site, which if all goes well is going to make me enough money to get my hands on a Titan X (yes, the 12Gb) card.

 

The funny thing about the Titant X and the original Titan is, the two Titan Model Cards that came after the Original and before the X, the Titan Z and Titan Black were crippled as far as thier uses for rendering applications.

http://www.migenius.com/products/nvidia-iray/iray-benchmarks-2015

The Gtx 980ti is like the Titan X's little brother. and if you ask me you an get some nicer options as far as cards go. Nvidia does not allow any of the Card Manufactures to make Custome PCB's for any of the Titans Cards. They are all Refrence models. While with the 980ti they have free range.

I am in love with the Gigabyte GeForce GTX 980 Ti G1 Gaming

http://www.newegg.com/Product/Product.aspx?Item=N82E16814125787&cm_re=GIGABYTE_GeForce_GTX_980_Ti-_-14-125-787-_-Product

scatha

The even more funny thing is that in your posted benchmark the 980 doesn't even get close... so much for the crippled Titan X card or being that card's little brother, hmmm?

JohnDelaquiox

Sorry if you misread my last post, I guess I did write it kind of odly, I think its better now.

The Titan Z and the Titan Black were the crippled cards, not the Titan X. And its the 980Ti not the vanila 980 that is the Titan X's little brother, that much I wrote clrearly.  The GTX 980Ti is virtually the same card as the Titan X, it has fewer cores and less ram but everything else is pretty much the same. The same thing happened in the previous generation. The GTX 780Ti was very close to the Titan.

Here are the 980Ti Benchmarks the ones I posted previuosly were for the Titan X comparison

https://render.otoy.com/forum/download/file.php?id=43690&sid=e7131d0f8fcfa350a2eb6882a8306bb0&mode=view

The Quadro M6000 is a 980Ti

Want to see something that I think is still very funny and blows me away. Check out the spec for the Gtx 580 compared to the Titan.

http://www.tomshardware.com/reviews/geforce-gtx-780-performance-review,3516-26.html

On a side note I still hate the Forum layout and still pissed we don't have a thread search.

 

Midnight_stories

The GTX 980Ti are brilliant I have 2 of them running on windows 10 it took least than a minute to render the Titian suit. Just lets you play with the setting more.

 

Midnight_stories

PS.I will have to check out how Octane performs in Windows 10 to, there's a bit more work to do to get it working.