"That was why I was asking no point in wasting $1500-3000"
1500?
http://www.pricewatch.com/video_cards/i was talking about windows, i have set some basic rendering farms, the apps mentioned the information i shared
i don't know any information about use gpu and cpu to render 3d to this date
maybe blender some day will do it, it is one of the most powerful multiplatform 3d generator apps
if you still want the EVGA mainboard put two nvidia or ati cards in sli or crossfire, you will get similar to better performance with a third of less of the price, some very cheap video cards capable to do very high framerates in gaming and in hd rendering in 2560x1600 for less than $200
this solution depends on how linux work with more than one video card in sli/crossfire
also you could consider a dual gpu video card, nvidia and ati both have solutions, i like more ati but nvidia tends to work better on linux but this is a little more expensive
what video card you install depends on what you are going to do
video intensive tasks, any decent ati or nvidia from 2008/9 to date will handle 2 or 3 hd videos simultaneously(lots of cpu required but you will have some of those)
if you are going to do lots of 3d modeling, you need maximum power and there is where the quadra or the ati solution comes to help but if you are going to do basic autocad or similar sometimes a integrated intel video card will be enough
