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38 Optimizing Performance
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NVIDIA SLI Dual Graphics Technology
With NVIDIA SLI (Scalable Link Interface) dual-graphics technology, an optional second PCI
Express graphics card will significantly increase graphics performance on your computer.
Benefits of this technology can be seen in the improved portrayal of the 3-D graphics used in
gaming and design applications.
Each graphics card includes a GPU (graphics processing unit). The two GPUs dynamically share
their workload to provide the best possible performance. For a given application, the SLI
software selects the optimum rendering (processing) mode. The two most basic modes are split
frame rendering and alternate frame rendering. In split frame rendering, the GPUs divide the
work; each GPU renders part of every frame that displays. In the alternate frame rendering
mode, each GPU alternately renders the full-screen image.
For more information, see the documentation that came with your graphics card.