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PC help - Quad Cores or 6 cores for DS and Iray?

Eva1Eva1 Posts: 1,249
in The Commons

Hi, I'm thinking of getting a new PC this year and need to decide on whether to get the motherboard with quad core or 6 core. Does it make a difference in terms of using Daz Studio and Iray rendering? I'd like to be able to do more whilst rendering is going on in the background (gets a bit sluggish on my current set up) and was wondering if either would help more (along with more RAM, better graphics card etc. which I intend to get) .

Comments

  • Dim ReaperDim Reaper Posts: 687

    6 cores will speed up your renders, depending on what engine you are rendering in.  I'd say this is probably more useful for 3Delight renders than for iray.  Iray is a lot faster using a nvidia graphics card GPU than it is using the CPU, so if your new computer is going to have a nvidia graphics card and you are likely to render in iray, then I'd say go for the quad core processor and spend the difference on the best graphics card you can afford.  My machine has an 8-core processor, but I use the GTX 980Ti for rendering in iray and don't use the CPU for rendering in Daz Studio.

  • Eva1Eva1 Posts: 1,249

    Thanks very much Dim. Yes,  I'd be using Iray (rarely touch 3Delight now) and I'd have a Nvidia card. I guess I was wondering if it was worth getting the 8th gen CPU which is the one with 6 cores. I'd rather spend more on getting a good graphics card like you say.

  • ChangelingChickChangelingChick Posts: 3,360
    edited March 2018

    The CPU will be useful even for iray for the preview. Unless you use Iray preview, the preview window is all CPU based. Also for Iray, depending on the memory on the graphics card, you may end up using the CPU to render anyway (even if it's switched off in the options). Once the GPU memory fills up, it kicks over the CPU (again, even if the CPU is checked off in the render options). So it really depends on the size of the iray scenes you're doing. Overall, the graphics card is probably more important, but don't neglect the CPU thinking you won't be using it. 

    Post edited by ChangelingChick on
  • AllenArtAllenArt Posts: 7,175

    I would suggest getting as much as you are able to afford ;). This includes CPU, RAM and GPU. You will probably end up using the CPU to render an Iray image at some point if you have a very large scene. It will also future-proof you slightly. As much as can be done in the computer age where things change daily. LOL

    Laurie

  • Ghosty12Ghosty12 Posts: 2,080

    As my sig now shows, I got a new system built and as part of that got a new Intel 8700K CPU and did a cpu only test on a very simple Iray render without the GPU and was impressed at the speed..

  • Geminii23Geminii23 Posts: 1,328

    I actually have a second rig that is just collecting dust ever since getting my Mac Pro.  Both are 6 Cores but my PC rig has dual Nvidia cards and my mac has dual AMD.  Been debating whether to just sell my PC or try to hook it up and setup some kind of KVM switch or something so that I can do iRay renders on it but still use my Mac primarily.  

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