Which graphics card(s)

[Korc]

One GeForce GTX 980
or two gigabyte windforce r9 290's

or do i need two graphics cards regardless?

 

[TechyInAZ]

what are your resolution, games, & specs?

 

[Korc]

what are your resolution, games, & specs?

i usually play heavily graphically modded skyrim and farcry 4
resolution i WANT is 1080p-1440p
specs are already
CPU: Intel Core i5-469OK
CPU Cooler: CYROG R1 ULTIMATE
Motherboard: MSI Z97-Gaming 7
1080p - 4k Gaming Storage: PNY 120GB SSD
Mass Storage: Seagate 1TB HDD
RAM: Kingston 8GB
Graphics Card: ???
CPU: Intel Core i5-469OK
CPU Cooler: CYROG R1 ULTIMATE
Motherboard: MSI Z97-Gaming 7
1080p - 4k Gaming Storage: PNY 120GB SSD
Mass Storage: Seagate 1TB HDD
RAM: Kingston 8GB
Graphics Card:
Power Supply: EVGA 850w

btw im building a new pc, so tell me if these will work or not and if its overclockable if you can

 

[TechyInAZ]

r9 290s would be faster, however i'm not sure if 850W is enough for two of them.

 

[Korc]

r9 290s would be faster, however i'm not sure if 850W is enough for two of them.

would the r9 290s contain better graphics or are the graphics a part of the CPU?
and how many W would I need for the two r9 290s