Enough Power to Crossfire R9 290's?

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jkteddy77

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Jun 13, 2013
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I have a Corsair 850w Gold PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139011

I want to crossfire R9 290's (I want the Aftermarket models releasing later this month or early December, so give or take power usage there)
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202043

Will 850w be enough? I've seem test show that they use anywhere from 230w to 310w max load . . . not very accurate averages.

I have an FX8350 (125w), a single 2TB HD, and 8 120mm or 140mm fans.

Can I safely crossfire these? I just bought the 850w, planning on CF'ing 280x's, but I now want 290's. I want the Rig to last as long as possible, and the 290 seems far better for next gen gaming at only $100 more than a 280x

Any confirmation if I could or couldn't CF 290's woud be greatly appreciated.
 
Solution
chemmajorp53
It should be ok assuming you don't have a massive overclock on all of the components. Guru3D reports that 2 290's consume about 500W at stock clocks. The fx 8350 consumes upwards of 200-230W when you're running it towards 4.7GHz+ (just look at the 225W TDP on the fx 9370) and overclocking the 290's would push you even further into the red zone. Everything at conservative overclocks should definitely stay within 850W considering AMD's minimum recommeded psu for cfx r9 290's is 800W. Another option would be SLI GTX 770s, the price drop puts them at an attractive price point as well and they consume less power.
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chemmajorp53

chemmajorp53

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Apr 5, 2013
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It should be ok assuming you don't have a massive overclock on all of the components. Guru3D reports that 2 290's consume about 500W at stock clocks. The fx 8350 consumes upwards of 200-230W when you're running it towards 4.7GHz+ (just look at the 225W TDP on the fx 9370) and overclocking the 290's would push you even further into the red zone. Everything at conservative overclocks should definitely stay within 850W considering AMD's minimum recommeded psu for cfx r9 290's is 800W. Another option would be SLI GTX 770s, the price drop puts them at an attractive price point as well and they consume less power.
 
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jkteddy77

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Jun 13, 2013
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Thanks guys! I am planning on buying a single aftermarket model R9 290 to complete my new build, and buy a second when their price drops and my PC gets slow (which hopefully won't be for 2 years). I plan on only running the 8350 at the stock 4.2ghz turbo, but that would have to change with Xfired 290's to eliminate Bottleneck, so its nice to hear I have a bit of headroom.
 
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