Tripple head alternative graphic card

I have a problem with the Matrox triple head adapter. if I make 3 times full hd resolution, the used screens crop the hd output.

which graphic card can spend 3 hd outputs directly without the adapter?

regards

actually i use a gtx 670. is there a way to use this card in span mode… should i use the multiscreen node?

your monitors must be exactly the same

ok, i found the surround feature in the graphic card… maybe I should play more computer games