I need help with crossfire

[AgunneR]

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051

 

would this be sufficient?

[App4that]

550w is sufficient for a single GPU, no need for a 750w. If you're still thinking of crossfiring, which two cards?

[AgunneR]

550w is sufficient for a single GPU, no need for a 750w. If you're still thinking of crossfiring, which two cards?

my current gpu (xfx radeon r9 280) 

 

with (possibly, someone mentioned these would be eligible to crossfire together) the 

SAPPHIRE Radeon HD 7970

[AgunneR]

i am still not decided on the second gpu though

[App4that]

Going cross generational with GPUs is risky, really risky. Synthetic benchmarks that show they connect are a completely different thing from using them to play the games you like. I'd sell the 280 and take the money you make plus the money you would have spent on a second card and get a better card.

[AgunneR]

Going cross generational with GPUs is risky, really risky. Synthetic benchmarks that show they connect are a completely different thing from using them to play the games you like. I'd sell the 280 and take the money you make plus the money you would have spent on a second card and get a better card.

how much do you think i could get for the 280, and where would i go about selling it?

[App4that]

Go on Ebay and look up how much they're going for in your area. Or list it in the classifieds here.

[AgunneR]

Go on Ebay and look up how much they're going for in your area. Or list it in the classifieds here.

If i were to sell it, what gpu would you recommend for around 400 USD

[App4that]

390x, 390, 970. All really good cards, just avoid the Asus versions.

[AgunneR]

390x, 390, 970. All really good cards, just avoid the Asus versions.

Alright, thanks