Take a look at this video demonstrating what a 450.00 card can do. What takes about a minute to render on one of the fastest windows server when performed with The Cuda Graphics Card it can be done in 2 seconds, as the video demonstrates.
On a side note how about driving 8 displays with 36megapixel resolution with the nvidia quadroplex 7000 card. Has 4 digital and 4 analog outputs of 2560 X 1600.