Questions
Q1
Will Hi-Fi Z87W motherboard support Nvidia GTX760 and GTX780 VGA card?

Yes, both GTX760 and GTX780 VGA card will be support by Hi-Fi Z87W motherboard.

Please be sure power supply on system have enough wattage for these high-end VGA cards.

We suggest to use 500W or higher power supply for support these two VGA card.