HD7970 POWER REQUIREMENT help please

[KonaGuyHi]

I need to know if i can run this card in crossfirex HD7970, i have used 2 psu calculators and they both give me different readings. Extreme power calculator gives me a 638watt power requirement and New eggs gives a 1030watt power requirement WTF!.

SYSTEM SPECS: FX8350 8 CORE PROCESSOR 4.8 GHZ
SABERTOOTH 990FX R2 MOBO
CRUCIAL M4 258GB SSD
500GD WESTERN DIGITAL HDD
16GB CORSAIR VENGEANCE RAM
BLURAY BURNER
CORSAIR AX850 GOLD RATED PSU

 

[ASHISH65]

your psu is enough for hd 7970 x2.you are fine

 

[KonaGuyHi]

Thank you very much!!! Why would new egg give false readings i wonder,

 

[ASHISH65]

yes it overshoots the number.you can trust 100% to extreme calculator.850w is enough for that rig