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Double-Barreled
Graphics
Hardcore PC enthusiasts have historically sought new
ways to maximize graphics and system performance. Scalability—combining
multiple graphics processing units (GPUs) to drive
a single display—is one approach. Unfortunately,
adding additional GPUs did not always achieve
the desired performance increase. Two PCI graphics
cards in one system, two GPUs on a single card, even
multiple cards in a workstation rack configuration
all had serious limitations.
Now, Alienware leverages a revolutionary approach to
combining multiple GPUs in a single system to enable
screaming, boundless performance. SLI™, or Scalable
Link Interface, is a high-performance technology that
allows users to intelligently combine and scale graphics
performance by having multiple NVIDIA® GPUs in a single
system. SLI works by intelligently scaling geometry
and fill rate performance for two GPUs.
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Ravenous Bandwidth
SLI technology fully exploits the increased
bandwidth provided by the latest bus architecture—PCI
Express—when communicating between the
GPUs and the CPU. Providing 60x the bandwidth
of PCI, the PCI Express interface eliminates
the bottlenecks caused by previous bus
architectures and allows for maximum system
performance in a multi-GPU configuration.
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The
Stuff
3D
Dreams
are
Made
of…
At
the
heart
of SLI
technology
is a
critical
core
of cutting-edge
components – an
SLI-Ready
system
board,
SLI-Ready
graphics
cards,
and
a high-bandwidth
SLI
bridge
all
interconnect
and
operate
in perfect
harmony
to deliver
the
kind
of speed
you
need – up
to double
the
speed
of non-SLI
systems!
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SLI-Ready
System Board
At the foundation
of the new Alienware
Aurora 7500 with
SLI technology is
the NVIDIA nForce™4
SLI™ chipset,
a high-performance
platform processor
providing two PCI
Express graphics
slots to accommodate
two NVIDIA SLI-Ready
graphics cards.
NVIDIA SLI-Ready Graphics Card
NVIDIA SLI-Ready
graphics cards are
designed around
qualified NVIDIA
PCI-Express GPUs,
such as the GeForce
6800 Ultra, GeForce
6800 GT, and GeForce
6600 GT.
Featuring intelligent
logic embedded within
the GPU, and a high-speed
digital interface,
SLI-Ready GPUs can
easily communicate
with one another
without the overhead
associated with
a bus-only implementation.
In addition, unique
software algorithms
efficiently share
the workload to
deliver unbelievable
performance.
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 SLI
Connector
A high-bandwidth digital SLI bridge connects
two NVIDIA-based PCI Express graphics cards.
This bridge provides the necessary high-speed
data path required for the graphics processing
units to operate in tandem, providing up
to two times the graphics performance of
non-SLI enabled systems.
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