Nvidia Titan Z for Iray, A good or a bad Idea ?

PA_ThePhilosopher

JPiat said:

If I render a simple scene, IE Genesis + Outfit, I wait 20 seconds, no more. But most of my scene are very complex, With my cheap motherboard, and 3 GPUs, the PCI Express speed is only x1. So I have to wait until the texture and the geometrie had been loaded into the GPU

I see. Yes a PCI express lane at x1 would definitely be the bottleneck. What generation PCI-E slots are they? Model of your motherboard?

With 3 titans, your wait should only be on the order of ~1 sec. for a simple scene. 

-P

PA_ThePhilosopher

jura said:

Right now GTX10xx series are disappointment in rendering,many people expected bigger gains in rendering speeds,I expected bigger gains in render speeds mainly in IRAY,what I didn't expected GTX1080 render speed in Poser 11 where is around 3x faster than my Titan X SC

For what it's worth, the speed of the 10xxx lineup will likely increase with time, as drivers are updated. The fact that the 1080 performs so well in Poser 11---3X faster than your Titan X as you say (presuming you are referring to GPU-only rendering.)---is a good sign. As new drivers are released, I would imagine iRAY speeds will ramp up as well.

Remember when the 9xx series was released, people were equally disappointed. Most people thought that nVidia had nerfed their lineup, less CUDAs for the non-Titan models, etc.... And they were right... But all things being equal, a 980 Ti still outperforms an equivalent 780 Ti by almost 30% in GPU-only rendering, even though it has the same number of CUDA cores (mostly due to clock speeds). One can only expect the same for the 10xx series.

With that said, however, I believe the 980 Ti is still the best card in the world today for the money. Nothing else comes close at the moment. They score the same as a Titan X for GPU rendering, at only a fraction of the cost. (they are selling on ebay now for ~$350...and 780 Ti's for ~$250... a steel if you ask me.... both cards are beasts). Rather than one Titan X, spend the same money for two (2) 980 Ti's and nearly double your render speeds.

-P

areg5

PA_ThePhilosopher said:

jura said:

Right now GTX10xx series are disappointment in rendering,many people expected bigger gains in rendering speeds,I expected bigger gains in render speeds mainly in IRAY,what I didn't expected GTX1080 render speed in Poser 11 where is around 3x faster than my Titan X SC

For what it's worth, the speed of the 10xxx lineup will likely increase with time, as drivers are updated. The fact that the 1080 performs so well in Poser 11---3X faster than your Titan X as you say (presuming you are referring to GPU-only rendering.)---is a good sign. As new drivers are released, I would imagine iRAY speeds will ramp up as well.

Remember when the 9xx series was released, people were equally disappointed. Most people thought that nVidia had nerfed their lineup, less CUDAs for the non-Titan models, etc.... And they were right... But all things being equal, a 980 Ti still outperforms an equivalent 780 Ti by almost 30% in GPU-only rendering, even though it has the same number of CUDA cores (mostly due to clock speeds). One can only expect the same for the 10xx series.

With that said, however, I believe the 980 Ti is still the best card in the world today for the money. Nothing else comes close at the moment. They score the same as a Titan X for GPU rendering, at only a fraction of the cost. (they are selling on ebay now for ~$350...and 780 Ti's for ~$250... a steel if you ask me.... both cards are beasts). Rather than one Titan X, spend the same money for two (2) 980 Ti's and nearly double your render speeds.

-P

You are so right.  I got a matched pair of 980 Ti Classified (has a backplate) on Ebay for 800.  3 months ago I got a 780 Ti SC for about 250.  My renders are incredibly fast.

JPiat

PA_ThePhilosopher said:

JPiat said:

If I render a simple scene, IE Genesis + Outfit, I wait 20 seconds, no more. But most of my scene are very complex, With my cheap motherboard, and 3 GPUs, the PCI Express speed is only x1. So I have to wait until the texture and the geometrie had been loaded into the GPU

I see. Yes a PCI express lane at x1 would definitely be the bottleneck. What generation PCI-E slots are they? Model of your motherboard?

With 3 titans, your wait should only be on the order of ~1 sec. for a simple scene. 

-P

My motherboard is cheap Asus Z170 Pro Gaming... Not the good cheapset. The loading time is long.... but the render time is very fast of course. For very simple scene : 1 car + 1 hdri map, it is not far from real time.