Please help me out understanding crossfire without a bridge

[Cranee]

Right now I'm building a gaming PC and I was gunna ask a couple of more questions if you wanna go look at the too if you want to help me out. Anyway, I was gunna get a sapphire Radeon r9 290x graphics card but i wanted crossfire on it. I herd that you can set up crossfire without a bridge, but with PCI3 express? Can someone explain this to me please. Here are my specs of my PC if it'll help
Cpu- i7-4790
Ram- ddr4 3000mhz (8x4gb) (Kingston hyperx)
Storage- Samsung ssd 500gb
Power and motherboard- haven't decided yet
I haven't bought anything yet, but let me know if I should change something (trying to not go over $2500)

 

[JackHoesterey]

Hello Cranne,
Crossfire is the concept of using two graphics cards in conjugation on one motherboard/ system. AMD graphics cards can be linked (you need 2 or more) through the PCI-e lanes on the board, whereas Nvidia requires a cable to connect the two. Either way you need two or more graphics cards, they just communicate differently based upon which company makes the card.

Your setup looks good, I would recommend you pick up the Hx1050 refurbished from newegg (GREATT DEAL) if you're gonna run crossfire or sli in the future, or just want some extra power for the future. I would also encourage you to move down to an i5.