I can't choose between these 2 motherboards, both of them is really good. Which of the Mobo is the best for gaming and video rendering? The Gigabyte Z77X-UD5H motherboard is expensive than the ROG board, but the ROG board has extra features.
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If you need the extra features that the Asus board offers, go for that. Else go for whichever is cheaper. A motherboard does not make a computer better for gaming or video rendering. Other components determine the performance in that.