New PC - 1x Geforce 1080 or 2x Geforce 1050
Ryselle-Ryssa
Posts: 146
Hi!
For the purpose of Rendering (DAZ3D with Iray and Blender 2.58). Would you recommend building a PC with one Geforce 1080 or two Geforce 1050?
Little additional question: Is there a benefit in building with i9 or is an i7 or i5 sufficiant?
Thx in advance!
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I think it depends on what you want to do with your computer while it's rendering, and how long your renders take (minutes, hours, etc..).
If you want to actually use your computer while something is rendering in the background, then get two cards. One dedicated card for rendering (best one), and one card for the monitor (cheap one).
If you don't care about that, then get one card. Using one card for both rendering and the monitor will slow things down though, even with a single GTX 1080.
Thanks for your answer...
Interesting question. Actually, i render and work with a Dell Precision 6800 (Quadro 3100M) and i7. But, it is nearly impossible to do something next to rendering. Toggling of CPU-Assistance in Iray increases Rendertime, so: No Option. Since this notebook would remain as secondary "PC", I can do things beside the rendering.
My original question emerged more from the thought of a SLI-System. I must correct my initial question: The 1050 is in every case a no-go, I somehow thought it had more cuda-cores...
So the question is: For rendering only, is Iray more pleased with a System that has a SLI-System out of 2 x GeForce GTX 980 Ti (2 x 2816 = 5632 Cuda-Cores) or 1 x GeForce GTX 1080 Ti (=3584 Cores). Price would be nearly the same here in germany...
Daz Studio doesn't combine CUDA devices (graphics cards). It looks for the CUDA device with the most memory and tries to load everything in it. So, if you get two cards, they will be seen as separate CUDA devices, not a single combined device.
Thx, this was the advice I needed. Knowing that DAZ will only use one card narrows down the options to the GeForce 1080.
Not exactly true. DAZ Studio does not use SLI; BUT, assuming the scene will fit in the memory of each card seperately, then the CUDA cores of both cards are used to reduce rendering time.
There is more RAM on the 1080. So you can render larger scenes on a card before CPU.
Two cards are good for rendering on one, and doing 'stuff' on another, particularly if you run more than one monitor, or the monitor is 4k.
SLI can be enabled in software for games, but disabled for rendering; it should be disabled as it can cause problems (Nvidia recommends this).
It will use as many NVidia cards as your system has, only dropping those that the scene wont fit into memory. (Caveat: there is a minimum spec for cards, but any 10 series should be ok). 4GB is the minimum recommended GPU RAM, but my own opinion is that 6 is closer to the minimum; although many scenes (smaller) will fit within the 4GB.
I would opt for the 1080 (more memory to play with and you can always add another when fortune strikes (remember 2 x 4 is 4 in the iRay world)).....I use it's older sibling the 980ti (6Gb and a healthy load of Cuda(R) cores) and believe me I'm typing this while my card is rendering......simple task are doable.....when you start using card intensive programs like Substance Painter that also uses iRay you start to see a considerable lag (as in skull bending deeply irritating).....but hey as sir F. Gump said so wisely "Stupid is as stupid does".
Greets, ArtisanS
As sayd, 2 card with 4GB is 4Gb usable, go for a 1070 if a 1080 is too expensive, and a 1080 if you can afford it, it works very well.
If you are a bit richer go for a Ti with 11Gb
2GB is quite short, 4 Gb fine but problematic wth more than 2 characters, 8GB is quite fine for numerous character.
I use a basic KFA2 1080/8g, and it is perfectly fine.
As the proud owner of a 4GB 970 and a 8GB 1080, I would recommend the 1080, rather than two 1050s. I've found that quite a few of my larger, more complex scenes won't fit into 4GB.
As for the processor issue, an i9 is overkill and an i5 a little underpowered. I use a 4.0 ghz i7.
Cheers,
Alex.
The 1050 does not support SLI, so 2x would not be useful in this case.
Thank you very much. 1080ti it is. Which is what I hoped to hear, since there is a shop here in good old germany which sells a complete system with the card.
Since the system will get its 32GB RAM, next question is: Processor.
The shop I look at (http://www.silentmaxx.de/pcs/kenko-der-lautlose-0db-pc/konfigurator.html?tx_smconfig_pi1[baseConfig]=15129&tx_smconfig_pi1[step]=config) offers the following options:
The i5 is out, so its i7 with 4 cores or 6 cores... 8 cores only if you say "Yes, the 8 core is a must!" - what would you reccomend and why?
That depends on what you do other than Iray rendering. For example: If you render in 3Delight thenyou need lots of CPU threads. If you just put together scenes to render in Daz Studio then the Six Core i7 is all you need (Do not get the i5 or the Quad core i7 in that series, as they only support dual channel memory while the 6x, 8x, and 10x CPUs support Quad Channel)
Make sure when they configure your system that they populate 4 sticks of RAM to fill the 32GB (4x8GB) if you choose the 6 core or higher.