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Minimum PSU for Crossfire HD 7790?

Hi,
I currently have this system setup.

Intel i5 - 4670
ASrock - H81M Motherboard
2GB + 8GB DDR3 RAM
1x Sapphire HD 7790
500 Watt PSU

Im planning on adding another 7790 and crossfire it with my existing one. So I want to ask what is the minimum PSU wattage that I am going to need? And yes I am aware I need 2 PCIE-2.0 6 pin cables.

Thanks in advance,
Ronny

Im new here, please bare any typos and mistakes I make. :D
4 answers Last reply Best Answer
More about minimum psu crossfire 7790
  1. Best answer
    AMD recommends 600W or greater.

    http://www.amd.com/us/products/desktop/graphics/7000/7790/Pages/radeon-7790.aspx#2

    AMD 7790 GPU in FULL Stress = 179W
    CF=358W

    I5 4670k=125W at stock clocks

    Thats already 483W just for the CPU and 7790 in CF
  2. So 600 - 650 will do the job right?
  3. Ronny927 said:
    So 600 - 650 will do the job right?


    Yes. i have the XFXPRO 650Watt and used CF 7870 before with no problem
  4. ifreestylin said:
    Ronny927 said:
    So 600 - 650 will do the job right?


    Yes. i have the XFXPRO 650Watt and used CF 7870 before with no problem


    Thanks man.
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