What's better, to link two inexpensive graphics cards in a single subsystem or buy one top-end card for the same money? This depends on the particular circumstances, of course. Perhaps you already have Nvidia's newest affordable solution GeForce GTX 550 Ti but you think it to be not fast enough in certain applications. Or you may have some $300 to spend and a mainboard with two PCI Express x16 slots. In either case the choice is hard considering the abundance of different offers in the graphics card market.