I want to build a gaming PC and I want to know that i7 4930k support gtx 770 and tell me about the motherboard Gigabyte GA-X79-UD3 will it support or any other motherboard and tell me about heatsink fan etc and recommend me some things for pc
Depends on how much money you want to spend. Going with the extreme series for gaming makes no sense. The I7 4790k is currently the best cpu for games out.