How is VRAM across mutliple cards calculated?

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damndirtyape
Licensed Customer
Posts: 4
Joined: Sat Feb 26, 2011 4:29 am

Hi folks,

Is available VRAM added from each card to the total amount you can use, or is it based off the primary card? So what I'm asking is if I have a 4 GB main card and a 2GB card in the second slot, would the renderer see 6 or 4GB?

thnx, TJ
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FooZe
OctaneRender Team
Posts: 1335
Joined: Tue May 15, 2012 9:00 pm

Octane will have a max scene size of 2GB in this case.
A copy of your scenes data gets uploaded to each GPU's VRAM, so octane is limited by the smallest card that is currently being used for rendering.
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