How well will my PSU run a new 7800GS?

Current PSU Antec trupower 380W. Thinks its time I upgraded? See folks like this one. OCZ 520watt SLI Powerstream. Kinda had good luck with the Antec so far, but I am wondering if I could get more of an OC with a new one.

I will use it in my next build so I don't mind overduing it a bit.

Is that ocz this one?
http://www.newegg.com/Product/Product.asp?Item=N82E16817104155

Also I am looking for one that really moves a lot of air any recomendations on that?

check out the extreme psu calculator HERE and plug your entire system in trying both video cards. this will even give you a rough idea if the psu is enough for what you have now. according to the site [which doesn't have the gs yet] the 6600gt uses 75 watts, and the fastest stock clocked 7800gt uses 97 watts- a difference of 22 watts. i don't know the wattage of the 7800gs, but i figured a gt was probably a safe guess as it could well be more than a gs. if you're maxing out your psu now, the extra wattage could easily be too much for the antec to handle.
i don't know how accurate the calculator is, but i've seen it linked in other threads and quite a few people say that it is fairly accurate with their systems.

Thanks pej
Once again I learn of something I would never have thought to search for myself!

Ok shows I am right at 380W with what I have. Deadon!
Need 400W with the new card. Now to choose a new one.

The card I have coming is O/Ced from the factory so 97W to 100W should be about right.

i would suggest going a bit overkill if you want to have the new psu for future upgradability, or even just to last its full lifetime. you may only be using 400 watts with everything you have, but if never hurts to have a bit more than you need. i'd say at *least* 450 watts of normal output, and definitely more if it's feasible. 400 watts from a 450 watt supply is still about 88-89% usage [400/450*100].
the powerstream 520 you mentioned in your first post is a favorite around here, and comes highly recommended by many. the link is actually to an ocz modstream supply. chances are it is a high quality one, but most will recommend the powerstream over it.

Try the Fortron AX500-A or FSP550-PLG-SLI. Both can be found at eWiz very cheap:

http://www.ewiz.com/detail.php?name=PS-SP550SL
http://www.ewiz.com/detail.php?name=PS-FS500A

Thanks for the input folks.

Think I will go with this one.

http://www.newegg.com/Product/Product.asp?Item=N82E16817711002

Tho this Sparkle you recommened LD looks mighty tempting.Half the cost.
http://www.ewiz.com/detail.php?name=PS-FS500A

yea, try monarch as they apparently, have the powerstream for $20 cheaper

dfonda said:

Thanks for the input folks.

Think I will go with this one.

http://www.newegg.com/Product/Product.asp?Item=N82E16817711002

Tho this Sparkle you recommened LD looks mighty tempting.Half the cost.
http://www.ewiz.com/detail.php?name=PS-FS500A

Click to expand...

Either would be great choices, the Sparkle will more powerful and about about 2/3 the price but it comes with a shorter warranty and low efficiency. Either way I'm sure you will be satisfied.