uh oh
http://www.anandtech.com/show/4254/triplegpu-performance-multigpu-scaling-part12 prove hard ocp isnt biased
http://www.hardocp.com/article/2011/05/03/nvidia_3way_sli_amd_trifire_redux/6The Bottom Line
http://www.hardocp.com/article/2011/05/19/quadgpu_performance_review_nvidia_vs_amd/8Based on our evaluations here, the Radeon HD 6990 CrossFireX solution is looking like the more value oriented setup compared to GeForce GTX 590 SLI. There are many good things going for CrossFireX Quad, you have more RAM per GPU which translates into real-world gameplay improvements, the power consumption is a bit lower, availability is a bit better, and pricing isn't as harsh. We also like the ease and simple nature of AMD Eyefinity setup. When you add all of this up, Radeon HD 6990 CrossFireX is a better value.
The way things are, GeForce GTX 590 is better suited for lower resolutions, which is odd to say, but true according to our testing. When the video card is not memory bottlenecked at lower resolutions, GTX 590 SLI performs very well, though 6990 CFX is a slight step ahead each time, it is still competitive at lower resolutions. But if you want to go for that high resolution display setup, only the Radeon HD 6990 CrossFireX will provide that Quad-GPU experience you are looking for.
6970+6990=1k
2 cheapest 580s in sli =940
ps
http://www.hardocp.com/images/articles/1305556675FMNAqcdgJC_8_1.gif
i wonder what seasonics new psu
can power
