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How to determine memory size of scene for GPU utilization?

FrankTheTankFrankTheTank Posts: 1,131
in Technical Help (nuts n bolts)

I'm going to add a 2nd graphics card, currently I have a 980 Ti (6GB GPU).

And Im debating between adding another 980 Ti which would double my CUDA cores to 5632, or get a Titan, which would still double the CUDAs but also give me more GPU ram, the main benefit being that should my scene exceed the size of the first card, I would be able to render with the Titan GPU, and for smaller scenes I would still get all 5632 cores utilized with both cards in SLI mode.

The trouble is, I have no idea how to determine when I am reaching my GPU ram limit, so I don't know if it is overkill to get the Titan.

Is there anywhere in DAZ where the scene size is shown?

Comments

  • TesseractSpaceTesseractSpace Posts: 1,406

    There's a script by SimTenero in the store to help with that

    http://www.daz3d.com/iray-memory-assistant

  • FrankTheTankFrankTheTank Posts: 1,131

    Thank you!

    TesseractSpace said:

    There's a script by SimTenero in the store to help with that

    http://www.daz3d.com/iray-memory-assistant

     

  • FrankTheTankFrankTheTank Posts: 1,131

    I just found a free utility to do the same thing called: GPU-Z, in case anyone else reads this thread and needs the same thing.

    https://www.techpowerup.com/downloads/2627/techpowerup-gpu-z-v0-8-7/

  • fastbike1fastbike1 Posts: 4,078

    Gpu-z wont tell you how big until you start rendering. SimTeneros script will tell you before you render and also how big every item is.

     

    completely different apps.

  • TesseractSpaceTesseractSpace Posts: 1,406

    Yeah, GPU-Z is what I use since I'm waiting on a catch up sale to get the script. It gives a raw usage but it doesn't have anything to help identify the items causing that memory usage. The script gives you a decent idea of where to make changes to a scene. And as stated it gets run before render unlike GPU-Z which only tells you during a render.

  • frank0314frank0314 Posts: 14,064
    edited March 2016

    You would be better off getting the Titan because DS won't recognize SLI at this point in time. You can use multi GPU just not in SLI mode

    Post edited by frank0314 on
  • fastbike1fastbike1 Posts: 4,078

    As long as the scene fits in the smallest Vram, both cards will be used. A Titan X and a 980TI will be 5888 cores.

    SLI should not be used for Iray (Nvidia warning/recommendation). 

    frank0314 said:

    You would be better off getting the Titian because DS won't recognize SLI at this point in time. You can use multi GPU just not in SLI mode

     

  • frank0314frank0314 Posts: 14,064

    I didn't say both cards won't be used. I just said that SLI can't be used. If you want max capability you'd get a titan but the 980Ti is a fantastic card with the 12GB of RAM plus its about $500 less

  • tskylie92tskylie92 Posts: 0
    frank0314 said:

    I didn't say both cards won't be used. I just said that SLI can't be used. If you want max capability you'd get a titan but the 980Ti is a fantastic card with the 12GB of RAM plus its about $500 less

    980TI doesn't have 12GB, it has 6.

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