Loading...
> >

OT-Nvidia Card Options questions for a new PC-help please-Thanks

JazzyBearJazzyBear Posts: 805
edited August 2018 in The Commons

I am looking to get a new PC as my old one, while having 354 Cuda cores basically is a CPU Only rig.

I have a favorite vendor and they only have a few options and I was wondering what the "sweet spot" would be. I have 2 hdmi monitors and want the new system to run with THE SAME 2(current) as well. 

The Options I can play with is 16G Ram or 32G Ram and the following cards:

NVIDIA® GeForce® GTX 1070 8G

NVIDIA® GeForce® GTX 1080 8G

NVIDIA® GeForce® GTX 1080Ti 11G

Duals

Dual NVIDIA® GeForce® GTX 1070 8G SLI

Dual NVIDIA® GeForce® GTX 1080 8G SLI

Dual NVIDIA® GeForce® GTX 1080Ti 11G SLI

Interactive renders in iray are the most important focus as I tend to spend a lot of time on morphs, hair and outfitting a single character. If I need a complex/large scene I tend to load all the characters in last and then just let the scene render overnight. I don't really ahe a cause to try and add in each character, morph and dress them inside a really full scene.

So questions I know to ask... is that 32Gig helping much over the 16Gig?

Is a DUAL 1070 give similar performance to a Single 1080Ti since the TOTAL number of Cores is similar?

Compared to what I have now, is a single 1070, with about 3 times the Cuda cores and at least 2x the memory going to be 3x faster in interactive mode?

Thanks in advance, Jazzy B-)

Post edited by JazzyBear on

Comments

  • kyoto kidkyoto kid Posts: 41,859

    ..well supposedly in a few weeks, Nvidia will be showing of the new generation of GTX cards. Not sure what the specs will be until they actually show and demo the cards in the real world (I no longer believe any of the pre-release speculative hype I read after all the talk of the 980 Ti which said it would have 8 GB).

    Did see a Gigabite 1080 Ti at Newegg for 669$

  • HavosHavos Posts: 5,582

    If you get a GTX 1080Ti, I would recommend you get at least 32GB of RAM.

  • ebergerlyebergerly Posts: 3,255
    edited August 2018

    Yeah, what Havos said....

    I find I can't load up my GTX-1080ti unless there's at least 30+GB of system RAM, and that converts to about 10GB of VRAM usage. Though you may be able to overload your system RAM and still fill the GPU by setting an appropriate pagefile. Not sure. 

    Also, you mention SLI. Iray doesn't use SLI, so if I were you I wouldn't hook it up. I have a 1080ti and a 1070 with no SLI and they run fine. 

    Attached is a list of reported render times for various combinations of GPU's rendering a benchmark scene (with times given in minutes), so it should give you a reasonable idea of how different systems will perform. Of course, don't assume the results are accurate to within 0.000001 %, since there are a lot of variables in how people render and report. Assume they're +/- 10 - 15 seconds.

    And yes, those results do seem to scale nicely to much larger scenes.

     

    BenchmarkNew.jpg
    383 x 465 - 52K
    Post edited by ebergerly on
  • ebergerlyebergerly Posts: 3,255

    Oh, and you mention about the number of cores, and maybe more is better...

    Well, maybe and maybe not. Different architectures can be faster with fewer cores. Like the GTX-980ti has more cores than the GTX-1080, but the 1080 can be faster. It depends. More isn't always better. 

  • JazzyBearJazzyBear Posts: 805

    Will a single 1070 run 2 hdmi monitors?

     

  • fastbike1fastbike1 Posts: 4,078

    If you go dual cards, don't use them in SLI for Iray.

  • ebergerlyebergerly Posts: 3,255
    JazzyBear said:

    Will a single 1070 run 2 hdmi monitors?

     

    Yeah I had mine running 3 no problem
  • JazzyBearJazzyBear Posts: 805
    ebergerly said:
    JazzyBear said:

    Will a single 1070 run 2 hdmi monitors?

     

     

    Yeah I had mine running 3 no problem

    Thanks!

Sign In or Register to comment.