Psu for Radeon 7850

[Xlolxz]

Which one of these the best power supply unit for the Radeon 7850.

Corsair 650W HX650 Power Supply, 80 PLUS Gold, 140mm Fan, 1x ATX, 1x EPS, 2x PCI-E, 8x SATA, 8x Molex, 2x Floppy, Modular Cabling

Corsair 750W TX750M Bronze High Performance Modular Power Supply, 80 PLUS Bronze, 140mm Fan, 1x EPS, 4x PCI-E, 8x SATA, 8x Molex, Modular Cabling

Corsair 650W TX650M Bronze High Performance Modular Power Supply, 80 PLUS Bronze, 140mm Fan, 1x EPS (8P), 2x PCI-E, 8x SATA, 8x Molex, Modular Cabling

 

[hdeezie80]

All system requirements are on amds site minimum 500w, but a 600w is recommended

 

[Herr_Koos]

A quality 500W is all that's required, according to the AMD site. 600W if you want to CrossFire.

http://www.amd.com/us/products/desktop/graphics/7000/7850/Pages/radeon-7850.aspx#2

I would also suggest looking at other brands for a price comparison; Antec, OCZ, Seasonic among others.