I've always read suggestions about recommended wattages for two of the same graphics card in a build regarding them to be in SLI, which is the usual case, but rarely have I seen suggestions not mention the cards being in SLI. For reasons like 3D rendering where SLI can't be used, but multiple graphics cards can still be utilized, a non-SLI configuration would be used. What I'm wondering is, does enabling and using the SLI configuration cause the graphics cards to draw more power(watts) versus a non-SLI configuration? I've never seen it measured before and it would make sense that they would draw the same amount of power in either scenario, but I still want to know if any tests or comparisons exist.