Consumption R9 390 / R9 Fury in crossfire

[Keidan Martin]

Hi everybody

First of all I want to apologize for my poor english because I am French and English inevitably it's not my main language (shame you tell me) but I just still on your site for one simple reason is I love this site and your colleagues Guru3D short, I will not tell my life xD

I wanted to ask you something, I intend to soon buy a new graphics card and I would eventually make a Crossfire yet I unable to calculate the exact power that will take me to the power supply, so I would like to know power you will advise me ?

To know that my processor is overclocked to 4.2GHz and occasionally he goes up to 5.0GHz for benchmark

Just in case, here is my config:
AMD FX-8320E
Asus Crosshair V Formula-Z
16GB 2400MHz DDR
SSHD 1to 2.5 "
SuperFlower SF-650WF14MG (to be changed)

 

[terroralpha]

your PSU is good enough for a single 390 or a single fury x. if you want cross fire you will need to step up to an 850W PSU or 1000W if you plan on OCing the cards.

 

[Aquinus]

You know, I suggest getting a 1kW PSU. Some will say this is overkill but this GPU can get very hungry. (I know, I have one!) Needless to say, at full tilt, my machine will now eat 550 watts overclocked which is almost the same as when I was running two 6870s fully OC'ed, so it's a hungry GPU. I can see you eating up 750-850 watts to run two in CFX, so that is why I suggest a 1kW PSU if you intend to run two of them The PSU you have now *should* be enough to drive one of them, however, it depends on how much power the CPU sucks down when overclocked; it could be close and if you plan on overclocking the 390 or not.

 

[Vicious]

I'd recommend getting a 1000W PSU for that setup specially if you plan on doing some overclocking.

EVGA G2 / P2, Corsair, Antec & Seasonic for the most part make good high end PSU units.

Avoid Corsair RM series PSUs.

 

[basco]

it looks to me that you know what you are doing when this processor goes up to 5,0 when benching-so yeah what peeps suggest 1000 gets you everywhere with room to get even higher.