Hey i was wondering..

What kinda PSU you need for a GeForce 7800 GT

like how many watts..
is 500 enough?

one more Question is there a big differnce between 7800 GT..and GTX?

really depends on your entire systems components and not just your video card. list your specs

"What kinda PSU you need for a GeForce 7800 GT".....I'd recommend a 500W with at least 20A on the +12v rail.

"one more Question is there a big differnce between 7800 GT..and GTX?"....yeah about $150+ (unmerited).

I agree; computing.net does need an edit button.

Amperage on the +12v rail is critcal. Don't buy a cheap no-name brand unit. Stick with reputable brand names & plan on spending at least $50 for something reliable

This space for rent

550w on an "el cheapo" means nothing. Don't save a few bucks here and expect anything good.

Hi
having had problems with a bfg oc 7800gt & psu's heres a tip , you need a dual rail psu, standard 500 watt psu are no good unless its continuous out put is sufficient to power your entire system and some.

the 7800gt uses two rail inputs dont be tempted to use one rail and the splitter
be aware many 500watt psu just dont cut the mustard.

Hiper Tagan etc their expensive but do the job.
http://www.hipergroup.com/English/products/hpu-4k580.html

I havnt found much in the way of performance diff between the bfgoc gt and gtx & depends on your cpu.
dmark05 6763 425/1050
optimised 6839
compare;
http://www.tomshardware.com/2005/12/02/vga_charts_viii/page18.html

gtx wasnt worth the extra £100.

for sale: slightly used 2x enermax 500 watt for underpowered systems £50..

ok my specs are

cpu (939-pin) AMD ATHLON64 4000+ CPU w/ HyperTransport Technology()

mother board(Sckt939)EVGA nForce4 SLI Chipset SATA RAID Dual PCI-E Mainboard w/GbLAN,USB2.0,&7.1Audio

2048 MB (1GBx2) PC3200 400MHz Dual Channel DDR MEMORY

NVIDIA Geforce 7800 GT 256MB 16X PCI Express Video Card() or GTX...didn't decide yet

80GB Hard Drive

COMBO DRIVE (16X DVD-ROM & 52x32x52 CD-RW)

HIGH DEFINITION ON-BOARD 7.1 AUDIO

So what kinda PSU you reccomend...actually ill give you a list tell me which one will do the trick

PC Power & Cooling TURBO-COOL 850 Watt Power Supply - SLI Ready()

Enermax Noisetaker EG701AX-VE(W) SFMA 24P (ALL IN ONE) SLI Supports 600Watt Power Supply()

hermaltake Purepower 680 Watt Power Supply - SLI Ready()

Enermax EG565P 535 Watt Power Supply (SLI-Ready)()

Aspire 680W BEAST POWER W/ PFC ATX Power Supply

Aspire 680W BEAST POWER ATX Power Supply

Aspire 600W DARK SIDE POWER ATX Power Supply

-thx in advance

Any of those should do, but I like the top two

just to note ;
enermax have updated their psu line.
you might want to consider one with the pci express support

http://www.enermax.co.uk/products/psu/liberty/ELT620AWT/index.asp

check some other specs here;
http://www.overclockers.co.uk/acatalog/Online_Catalogue_Power_Supplies_123.html

maybe your local supplier has stocks, from the list: thermal take one reviewed here;
http://www.gruntville.com/reviews/PSUs/tt_purepower_680/index.php

So any of the PSU's I listed above should do the trick for the specs I listed, right? well thanks for all your help guys. I'll come back to see if anyone agree's with GXI man

Any of those should do, but I like the top two