Quote:SLI as Nvidia tech Crossfire is what you're looking for.
These are dual gpu cards so you can CF only 2 for a total of 4 gpus.
2 way CF not 3 way SLI I don't really get how you get 4 cards and still only have 3 way sli unless you put one in another rig.
Also the Nv tax as you call it is still a small price to pay compared to 4 295x2's since those would be 6000 dollar. (It is under 9000!)