A coworker and myself are in a disagreement over whether games or apps can take advantage of SLI or Crossfire tech.
He says the program/software/game must be specifically written to see any speed increase out of SLI.
I disagree. I say the OS sees the SLI cards as just one card and displays it accordingly. He says that a special API or code has to be written to take advantage of the technology of dual/quad cards. He says it won't be able to natively take advantage of the tech till Direct X 10.
Apps don't have to be written to take advantage of multi GPU technology... it's the driver that does it.
But the driver usually has to be optimized for a game to get real big performance gains. Without optimizations, some games give a negligable advantage.
That's why frequent driver updates help alot, many times they add optimization for SLI/Xfore with particular games in the updates...
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