NVIDIA Corporation
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Chapter 9
Using NVIDIA Scalable Link Interface (SLI)
Using NVIDIA SLI
This section explains how to use the following SLI features:
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•
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SLI Mode Overview
The following SLI modes are available:
• SLI Frame Rendering (Multi-GPU)
SLI frame rendering accelerates OpenGL operation in two different ways: split-
frame rendering (SFR) and alternate-frame rendering (AFR). In SFR, the display is
split into distinct sections, and each section is sent to a different GPU. The
resulting rendering is recomposed and displayed as a single contiguous frame.
The position of the split is adjusted dynamically as the workload moves between
the GPUs. In AFR, each GPU renders alternate frames of data from the
application.
• SLI AA
You can use SLI to provide higher-quality antialiasing beyond 16xFSAA. In this
mode, neither AFR nor SFR are available.
• SLI Single GPU
Also known as SLI compatibility mode, this mode provides for improved
performance at a level that assures compatibility with most applications.
Two basic steps are required to select an SLI mode,
1
Select the SLI mode to use when SLI is enabled in a profile.
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SLI Multi-GPU rendering
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SLI Single-GPU rendering
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SLI AA
2
Select the 3D application profile to use.
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3D App-Modeling AFR
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3D App-Visual Simulation
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3D App-Default Global Settings
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