Whats the best psu watt calculater?

Here is a system i am tryin to power up with a 500watt psu

Phenom II x4 955 BE

2x5770 crossfire

8G DRR2

MSI 790XT-G45

1 wireless usb adapter

1 dvd-rw drive

You can use this one here:

http://extreme.outervision.com/psucalculator.jsp

Or, use the one on Cooler Master's website here:

http://www.coolermaster.com/support/psu_calculator.php

I've always use this one, and I've never had an issue.

http://www.antec.outervision.com/

I've always use this one, and I've never had an issue.

http://www.antec.outervision.com/

tempest91

I used that got about 480, really close :( i guess i should buy this psu here then?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

[QUOTE="tempest91"]

I've always used this one, and I've never had an issue.

http://www.antec.outervision.com/

davi21a

I used that got about 480, really close :( i guess i should buy this psu here then?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005

That is a nice PSU and a good deal. Sounds like a winner.

i would try a 850 name brand Power supply and call it good...