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Video card SLI question

StingerStinger Posts: 324
in Daz Studio Discussion

My GTX 960 2g seems to be lacking in the Iray rendering department!  I was thinking about adding a GTX 970 4g card in SLI.  If I do, will Iray be able to use the 6 gigs of total video ram, and all 2688 cuda cores? Or would I be better off shelling out the cash for a 980 and ditching the 960?

Comments

  • thd777thd777 Posts: 943
    edited May 2016

    1. SLI does not provide any advantage for Iray rendering and in some sitiations can lead to problems.

    2. If you use two or more cards all CUDA cores will be used.

    3. The video ram for each card will be used independently. So the card with the smallest amount of ram will determine the size of scene you can render with all cards (cards will automatically drop out if their ram is insufficient for a scene.

    Ciao

    TD

    Post edited by thd777 on
  • StingerStinger Posts: 324

    Thanks for the info thd777.  A 980 is out of my price range so I'll probably go with the 970.  Just wish there was a 6g version.

  • StingerStinger Posts: 324

    Forget about the 900 series! The GTX 1070 and 1080 are coming out in a few weeks. With 8 gigs of v-ram, I see a 1070 in my future! ;)

  • thd777thd777 Posts: 943

    Indeed. I am waiting for the 1080 and will put two in my box if the initial reviews are good.

    Ciao

    TD

  • nicsttnicstt Posts: 11,715
    thd777 said:

    Indeed. I am waiting for the 1080 and will put two in my box if the initial reviews are good.

    Ciao

    TD

    I would expect issues with drivers, so would suggest some caution. I must admit though, I'm itching to get a few, errr well one.

  • thd777thd777 Posts: 943
    edited May 2016
    nicstt said:
    thd777 said:

    Indeed. I am waiting for the 1080 and will put two in my box if the initial reviews are good.

    Ciao

    TD

    I would expect issues with drivers, so would suggest some caution. I must admit though, I'm itching to get a few, errr well one.

    Well, yes. Hence the "...if the initail reviews are good" part of my statement... I'll let someone else take the first stab at the bleeding edge...  :)

    Ciao

    TD

    Post edited by thd777 on
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