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Hey everyone – I just bought a new RTX 3060 12G (for Iray rendering) to replace my aging GTX 1080, which has 8GB of Vram.  Can I use the RTX for display and the GTX as a slave for the CUDA cores?


Laila Sari
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The GTX won’t be a ‘slave’. You have two cards which Iray treats as two entirely separate environments. Everything  loads into both cards and they render independently. If the scene doesn’t fit in VRAM of one of the cards that cards drops out of the process. You can go either way; I put my monitors on my oldest card, leaving a bit more available memory on the others. (I have a 980 TI – 6 GB, 1080 TI – 11 GB, and a 3060 – 12 GB. I used to drive my monitors with an old 740 SC but it was getting flaky, so I now run them on the 980 and don’t bother using it for renders).

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