PSU question for 7950 Crossfire

EoinHef

Honorable
Jul 17, 2013
14
0
10,510
Hello,
I currently have this build:
i5 3570k @ 4.2GHz
ASRock Extreme 4 Z77
Sapphire 7950 Vapor X
1 x 128gb SSD
2 x HDD (1x 1TB and 1 x 2TB)
Corsair HX750 Professional Series HX 750W

I want to add a second Vapor X to the build so my question is is the PSU strong enough to crossfire these cards with the rest of the setup?

Heres a link to the psu on newegg:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010

Thanks for any help in advance:)