* Luca Villa:

I think that the NVidia Quadro or ATI FireGL are those that can give
me the highest speed, more than the gaming cards.

No, they won't. Both FireGL and Quadro FX are professional *3D* cards
(the 2D equivalents are Quadro NVS and FireGL MV which are for 2D
multi-monitor solutions) based on the exact same chipsets as the
consumer cards (Geforce/Radeon).

Are you completely sure that they cannot make a visible difference
against cheap $50-$100 cards for general Windows use with tens of
opened windows?

Yes, I am. And yes, I do know the gfx cards including the FireGL and
Quadro quite good as we have a ****load of workstations with these cards.

Of course you're free to go out and spend say 2500USD for a Quadro FX
5600 with 1.5GB memory. But for 2D it won't bring you one yota of
performance benefit over say a 30EUR Geforce FX 5200 or any other low
end card.

The times when 2D performance was a challenge for computers are over for
at least around a decade now. Even a 1999-vintage Geforce256 gets
bored with everything 2D.

Benjamin