GTX 590 vs HD 6990 and explanation of 4-way SLI vs 3-way SLI
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September 29, 2011, 12:25 PM
Join Date: Apr 2007
That is unfortunately correct.
All dual GPU NVIDIA cards are only 4-way SLI compatible using another identical card.
Please note: I am not here to provide official NCIX support on these forums.
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