1000 is more than enough...... you would prolly be ok with 750/850
use this and see what you need

http://www.extreme.outervision.com/p...ulatorlite.jsp

Lovely card. 1000 W is more than enough.

That PSU will be fine.

Personally I wouldn't use PSU calculators as I don't find them all that accurate, as the times I've gone off what they've told me, the PSU I had wasn't enough even though it should have been.

1000w is more than enough, and as been noted, a 750 would do well with that system.

@ everlong18,

I have to disagree with you about power supply calculators. As you've noted they give an estimate of the overall power requirement needed to run a given system. However, if the information given to make the calculations is wrong or incomplete, then you get inaccurate results.

Personally, I've found them to be pretty accurate in doing what they're designed to do - give an estimate of overall system power requirements. A few of them are pretty much standard across the board and are constantly updated (ATI's new 4890 is now included in the calculator)

Here's 3 examples - Antec Power Supply Calculator, Thermaltake Power Supply Calculator or eXtreme Power Supply Calculator Lite v2.5

Just my counterpoint

Originally Posted by sygnus21

1000w is more than enough, and as been noted, a 750 would do well with that system.

@ everlong18,

I have to disagree with you about power supply calculators. As you've noted they give an estimate of the overall power requirement needed to run a given system. However, if the information given to make the calculations is wrong or incomplete, then you get inaccurate results.

Personally, I've found them to be pretty accurate in doing what they're designed to do - give an estimate of overall system power requirements. A few of them are pretty much standard across the board and are constantly updated (ATI's new 4890 is now included in the calculator)

Here's 3 examples - Antec Power Supply Calculator, Thermaltake Power Supply Calculator or eXtreme Power Supply Calculator Lite v2.5

Just my counterpoint

There might be others that are more accurate. The only one I've tried is the eXtreme one and on the two times I used it and went along with what it said, the PSU had problems with the system.

I'd say if you do use these, then just allow quite a bit of headroom with the PSU you buy

Yeah a 1000 is just simply great....and more than enough too and it's an awesome card man...

Cheers..

Originally Posted by archie123

yeah get the 1000w one , run a pipe off the back around your house , it'll help keep it warm

And the electric company happy

Originally Posted by Everlong18

I'd say if you do use these, then just allow quite a bit of headroom with the PSU you buy

I'd say the headroom should be around 150 watts which allows for upgrades