My PSU handle 2x R9 390x in Crossfire?

[Mad Nutter]

Would I be able to run 2x AMD Powercolor DEVIL R9 390X GPUs in Crossfire Configuration with my OCZ 750W FATAL1TY PSU?

Or do I need a higher 1000W+ PSU to handle these cards?

Other system specs below:
AMD FX 8350 8 Core Black Edition @ 4.2GHz
Asus M5A99 FX Pro R2.0 4xPCI-e 3.0
Kingston Hyper-X 32GB (4x8GB) DDR3 1866MHz

The two cards I'm looking at come pre-watercooled as well, linked here: http://www.amazon.co.uk/PowerColor-DEVIL-390X-AMD-Radeon/dp/B014F7A65W/ref=pd_rhf_dp_p_img_1?ie=UTF8&refRID=1ZZWJQTDSHA81AYF1D04

Thank you.

 

[Archaic59]

Peak power for a pair of those can reach close to 600 watts. I'd say nothing less than 850 watts and 1 kw would be advisable.

http://www.guru3d.com/articles_pages/powercolor_devil_radeon_r9_390x_review,8.html
http://www.realhardtechx.com/index_archivos/Page362.htm

 

[lobotomite430]

Im running an Corsair HX1000i powering my 2x Vapor-x R9 290's just fine. Before that I had a Corsair HX750 and it wasnt enough when I turned on the games. get something bigger for sure.

 

[nerd246]

I'm running MSI 390X (2) in Crossfire with a 720 EVGA with gold cert and no issues so far. However, I don't overclock anything.

Intel 5820K at 4GHz
Corsair H80i
32 Gigs DDR4 RAM
Samsung 840 250Gb
MSI 390 (2) in Crossfire

 

[turkey3_scratch]

I'm running MSI 390X (2) in Crossfire with a 720 EVGA with gold cert and no issues so far. However, I don't overclock anything.

Intel 5820K at 4GHz
Corsair H80i
32 Gigs DDR4 RAM
Samsung 840 250Gb
MSI 390 (2) in Crossfire

I'm guessing you never stress tested.

 

[nerd246]

I'm running MSI 390X (2) in Crossfire with a 720 EVGA with gold cert and no issues so far. However, I don't overclock anything.

Intel 5820K at 4GHz
Corsair H80i
32 Gigs DDR4 RAM
Samsung 840 250Gb
MSI 390 (2) in Crossfire

I'm guessing you never stress tested.

Do you have any recommendations on what to stress how long to stress and what to use

 

[turkey3_scratch]

If you stress tested both your GPU and CPU at the same time, there is no way your system could provide that much power. Gaming load is quite lower than stress test load. Each GPU will likely use 70W more of power under a stress test.