Guru3d is at it again. In the past they have added extra voltage to a GeForce GTX 480 and a GeForce GTX 470 to see how far you could overclock them. Today, they take three GeForce GTX 480 cards and put them into triple SLI mode to see how well they perform. Take a look at that picture to the right and realize that it required a 1.2 Kilowatt power supply to power the system. Under load, the system consumed over 1 Kilowatt of power. Of course, overclocking the Core i7 965X to 3.75 GHz also adds to the power load.
But how did it perform? Was 3-way SLI worth it? Well, you will have to read the article to find out, although this little teaser should give you an idea.
Far Cry 2 did a little better, though 3-way SLI again is massively limited by the processor it at the very least scaled fairly nice. And 2-way SLI, well just look at 2560×1600… that’s roughly 1.9x performance over the single GPU GTX 480.
I’m going to go for tri sli Palit 470
http://www.ksn-online.co.uk/components-video-cards-palit-128gb-gef-gtx-470-pci-hdmi-p-8509.html
They run cooler than stock, use less power than a 480 and great to clock up