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“The possibility of pairing up graphics cards in order to increase the
overall graphics subsystem strength is nothing new. Ever since the
golden days of 3dfx and the first SLI mode (which was not the same as
today’s Nvidia SLI) have two graphics cards in a single PC been an
option. To be honest, only the last few generations have made this
concept practically usable, meaning that the gain from using two cards
instead of one has a significant performance impact compared to the
doubled price required to be paid. Actually, most users still think that
two graphics cards equals double the performance, but that’s not exactly
the case. Still, that isn’t to say that a long period of time hasn’t
passed since gains of 30-50% were considered good, and on the other
hand, ATI and Nvidia have kept on increasing the number of
Radeons/GeForces one can place inside a single PC…”
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