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I were given two 580 GTX evga cards and thinking of putting them to use. Should I use SLI or not? I know that sli makes two card work as one etc. Hear some say SLI is not good for cycles, better to run them without the bridge.

any advice?

Olaven
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  • related: http://blender.stackexchange.com/questions/5228/how-will-two-gpus-improve-cycles-performance –  Feb 28 '16 at 18:53

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Short answer: turn it off when rendering with cycles. My video card is almost the same as yours (evga 590gtx, its a dual proc card, so the computer detects it as 2 video cards) and runs faster with cycles when not on SLI mode.

Juan Riveros
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