How much power would 2 GPUs need?

[willdebeast]

As my title states, I was wondering how powerful of a PSU I would need to have the option to have 2 ATI 5850s running in Crossfire

 

[iPwn]

The 5850 draws 151 Watts at max, so you'd need a 300W power supply for the cards themselves! What is the rest of the setup?

 

[Marshillboy]

It sounds like 650W would be fine, but we won't know for sure until we know what the rest of the components are

 

[willdebeast]

Motherboard: http://www.newegg.com/Product/Product.aspx?Item=N82E16813130223

Processor: http://www.newegg.com/Product/Product.aspx?Item=N82E16819103846

Memory: http://www.newegg.com/Product/Product.aspx?Item=N82E16820211409 (I'm think I might want to later buy another two sticks of these to upgrade to 8GB)

Power Supply: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139012
This is the one I was thinking of getting

The reason I made this thread was to see if I could upgrade the PSU and Mobo within budget so that I could have a single 5850 and then later get another and Crossfire them.

 

[willdebeast]

So I guess my question is will a 650W PSU support a processor that I'll probably unlock into a 4 core and overclock, 2-4 sticks of RAM, and 2 5850's