Need suggestions for system upgrade

zaselim_08eb9236

Currently i am using i7 6700k,gtx 1070, 32Gb 3200mhz ddr4, samsung evo 850 pro ssd/s. Now with the scenes i render usually takes about from 3 to 12 hrs at 4000x4000 / UHD(for wide) and i want the max(12hrs) time to be as lese as possible mins if possible. I dont have any issue with money, time is what I dont have because of work so if money is not an issue than what system should i build. I also game so if having a gtx cards instead of quadro wont effect too much then i will prefer gtx cards. I will be really grateful for the help/suggestion. Thanks.

Richard Haseltine

Unformtunately saying "I don't have any issue with money" doesn't give much of a guid - e.g. is https://www.scan.co.uk/3xs/configurator/nvidia-dgx-station-deep-learning-workstation an option? (OK, not a dedicated render box and probably not that good for games, but we need some kind of guidance on what you are willing to look at.)

zaselim_08eb9236

Richard Haseltine said:

Unformtunately saying "I don't have any issue with money" doesn't give much of a guid - e.g. is https://www.scan.co.uk/3xs/configurator/nvidia-dgx-station-deep-learning-workstation an option? (OK, not a dedicated render box and probably not that good for games, but we need some kind of guidance on what you are willing to look at.)

No issue with money means that i have no problem with building a system even if it cost me huge amount of money like pro level work station machine does. Currently when i render my cpu takes 100% as well which means daz uses both cpu and gpu base rendering. So i can buy 4 rtx titans if i dont want quadro but if will make a huge difference then i can buy the lastest fastest 4 quadro cards (assuming 4 way sli is the limit) i know about which and how muchn ram to get(128gb max) i know which ssd will be better compared to my current one. CPU is where i lack knowledge the most and where i need suggestions the most. I am gonna take a look at the link you mentioned as well.

zaselim_08eb9236

I can buy that system, but my question is how much it will have performance these 4 tesla cards have compared to the quadro cards. And how much overall performance it will have and does it worth the money? My goal is to get a rendered scene in mins like 30 mins top over 12 hrs time it takes right now. If i can get the same results with cheaper sysyem then there is no need to get a system with the price tag of 60k usd, right?

Richard Haseltine

Adding more cards will, as I recall, increase the load on the rest of the system (for management etc.) - but if you are rendering only on the GPU now, and it is being used, I would think you'd have less than full utilisation of the CPU

Dim Reaper

Even when money isn't an issue, it doesn't make sense to buy hardware that you will never fully utilise.  So there is little point in buying RTX Titan cards with 24GB of vram if you never make scenes that will require that much memory.  If you could give some examples of what you normally render, it would help to give an idea of what you would be best off buying e.g. 2 genesis 8 figures with HDRI background.

That said, in your current setup you have a 1070 with 8GB VRAM.  Assuming that your scenes are actually rendering on the 1070, and not falling back to CPU due to a scene exceeding 8GB VRAM, then I would say that you would be fine with cards that have 11GB VRAM.  If you take a look at the tables on the first page of this benchmarking thread:

https://www.daz3d.com/forums/discussion/341041/daz-studio-iray-rendering-hardware-benchmarking/p1

then you can see that for the price of an RTX Titan (24GB), you can buy two 2080Ti cards (11GB) and have just less than double the rendering power of a single Titan RTX.  You would need to ensure that your power supply unit is up to running more than one card, and also that your motherboard will have PCIE slots far enough apart to accomodate two cards.

However, only you can decide exactly what best meets your needs, so I would recommend looking through the benchmark thread above and comparing the render scores / times with the 1070 (which is listed in the tables).

 

zaselim_08eb9236

No currently i am also using cpu like i said in my comment, which takes 100 load when rendering. The main thing i need to know which one (cpu or gpu) daz ustilizes more if both selected for rendering because it reduces the time. If i only use my 1070 then it takes longer to render. I looked into cpus and like i said my knowledge on cpu power is very limited,so the cpu which has more core like intel's i9 9980xe has 18 core 36 threads at 3.0 base frequency upto turbo 4.40,24mb cache but the ones with less cores has more base frequency like 9900 has 10 cores 20 threads with 3.5 base frequency. Which one would be better for daz in this case, the one with more cores or the one with more clock speed? Again my knowledge on cpus are limited. Yes by looking at benchmarks i can understand more and it surely will help me understand how newer gpu peforms and by going sli(2 to 4 way) helps or not.

zaselim_08eb9236

So rtx titan renders 07 iterations and 2 rtx 2080ti renders 14 which means one rtx 2080ti does about the same (6 iterations) as rtx titan which means getting 2080ti is better (because 2 will cost less than one titan) than rtx titan. But i would love to see how many iterations 2 rtx titan render. Which means 2 rtx 2080ti can render around 50000 iterations in one hour. So it is right to assume adding 2 more rtx 2080ti (4 way sli) will that time to 30mins instead of 1hr with 2 rtx 2080ti. And using a cpu 9980xe with more 18 cores will also help reducing the time more. But it also comes down to scene as well, like this one scene with 2 characters took me 13 hrs at 1080p but was still unable to complete the iterations i chose because it was taking more time to render iterations and my selected 13hrs mark was completed but this one scene with 8 characters to me 8hrs at 5000x5000. So it also depends on the scenes, my guess the scenes having low light takes more time than the scene with light everywhere.

Dim Reaper

If you're doing scenes with 8 characters then you may need more than just 11GB of vram.  As for multiple cards, adding a second card will roughly half the render time, but a third has much less effect. There is one piece of evidence of this given by Jack Tomalin on the first page of this thread:

https://www.daz3d.com/forums/discussion/344451/rtx-benchmark-thread-show-me-the-power/p1

As for cpu/gpu in general, the cpu is nowhere near as fast as a single gpu.  The only advantage of cpu rendering is that you have a lot more memory to render the scene in.  

Regarding light, you are correct that iray renders are much faster with a lot of light.

 

zaselim_08eb9236

Thanks for the info, i will check that link as well.