I found this article on theinquirer.net about a recent demo of the nForce 4 Intel Edition launched at SnowBIT.

Here is the article:

Intel nForce 4 is a performance humbug
By Wil Harris
WE HAVE some exclusive information for you about the performance of the nForce 4 Intel Edition chipset that GraphZilla launched to at SnowBIT today.

Our exclusive benchmarks run today tell us that the top of the range Intel system running nForce 4 with 2 6800 Ultras scores fully 4000 less 3dMark05's than the top of the range AMD rig outfitted similarly. An Nvidia representative yelled to us that we 'Shouldn't compare Intel and AMD!!' Why, pray tell thee?

At the press conference, Drew Henry from Nvidia stood up and showed the world 55 FPS on Doom 3 using the platform. He was in rapture, because he said that a single GeForce 6800 would only score 30FPS at these settings. We learned, however, that the scores are quite different and that Nvidia's original plan was to demonstrate the prowess of the platform by showing the frame rate with SLi turned off in the driver then turned on. However, with SLi off, the system scored 45FPS and with SLi on, the system scored 55FPS - hardly the 90% performance increase that Nvidia claim.

Regardless of the launch of the Intel nForce platform, it's clear that Intel rigs still can't touch their AMD equivalents for gaming performance. We know that nForce 4 for AMD is the fastest gaming system out there. It's some hot shizzle, with 500,000 boards shipped by the end of this month.

Also, check out this SLI setup that uses 2 6800 Ultras with 512mb each!