SLI
From TPU Reference
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Requires updated history, as well as more detailed information on how SLI works
Short for Scalable Link Interface, SLI is NVIDIA's proprietary method to interconnect multiple video cards to increase video rendering performance.
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Requirements
To implement SLI, a computer must possess these key elements:
- An SLI capable motherboard
- Two SLI capable video cards
- A power supply with adequate wattage to power the system.
SLI Compatible Chipsets
- NVIDIA nForce4 SLI
- NVIDIA nForce4 SLI X16
- NVIDIA nForce570 SLI
- NVIDIA nForce590 SLI
- NVIDIA nForce650i SLI
- NVIDIA nForce680i SLI
- NVIDIA nForce680a SLI
SLI Compatible Video Cards
The following cards use or require the SLI bridge connector:
- GeForce 8800 GTX
- GeForce 8800 GTS
- GeForce 7950 GX2
- GeForce 7900 GX2
- GeForce 7900 GTX
- GeForce 7950 GT
- GeForce 7900 GT
- GeForce 7800 GTX
- GeForce 7800 GT
- GeForce 7900 GS
- GeForce 7600 GT
- GeForce 7600 GS
- GeForce 7300 GT
- GeForce 7300 GS
- GeForce 6800 ULTRA
- GeForce 6800 GS
- GeForce 6800 GT
- GeForce 6800
- GeForce 6800 LE
- GeForce 6600 GT
The following cards do not use the SLI bridge connector:
- GeForce 6600
- GeForce 6600 LE
- GeForce 7300 LE
- GeForce 7300 GT
Power Supply Requirements
High-End Machine:
- 750 Watts or higher
- 30 Amps or higher on the +12 Volt rail
Low-End Machine:
- 400 Watts or higher
- 22 Amps or higher on the +12 Volt rail
Benefits
SLI was created to increase performance in demanding video games at very high resolution and quality settings.
History
Even though NVIDIA acquired 3DFX a long time ago, NVIDIA's SLI has nothing to do with 3DFX's SLI (which is called Scan Line Interleaving) used on the Voodoo 2 cards. The only thing these technologies have in common is that they are both used to interconnect video cards and of course the abbreviation.
