Corsair cx430/xigmatek nrp-pc502 with hd 7850

[ramish]

hi guys i am building a gaming pc with:

core i5 and hd 7850 but i am confused between two power supplies

one is corsair cx430 not v2 edition
and the second xigmatek nrp-pc502 80 plus bronze
and please tell me which is better for my pc.

 

[alvine]

what are their power ratings?

http://www.amd.com/us/products/desktop/graphics/7000/7850/Pages/radeon-7850.aspx#2
500W (or greater) power supply with one 75W 6-pin PCI Express power connector recommended
600W power supply (or greater) with two 75W 6-pin PCI Express power connectors recommended for AMD CrossFire™ technology.