AMD R9 290x Crossfire Power

[Matthew McCormick]

So recently I have been seeing a trend of games asking for an AMD r9 290. Since I have a 290x I can see games in about a year asking for a 290x . As such I decided "Maybe I should cossfire"

But what powersupply do I need. Currently I run an AMD R9 290x Club 3D RoyalAce and will hopefully run a second.

My PSU is a Corsair RM 850. Will this be enough??

 

[jossrik]

Recommended for a xfire 290x setup is 1000W. You could prolly get away with a good quality 850 though.

 

[4745454b]

Those are 300W cards each, so you'll need 600W JUST for the cards. If you are running an AMD FX CPU, that's another 125W for the CPU. Meaning you might need 725W for the biggest power drawing things in your PC. Tack on another 50W for everything else, and you are just under 800W. Your Corsair will probably handle it, but in general you want a good/quality 1kW unit for such a system.

 

[Matthew McCormick]

I run an Intel i5 4670k

 

[4745454b]

Lowers it a bit, but only ~50W or so. You'd now be just under 750W. OCing anything would be a no, and I'm not sure ~100W is enough of a buffer. I'd still replace. (Or move to the lower wattage 970/980.)

 

[Thunderballs]

I crossfire r9 290X with a Corsair AX860 no problems at all.