Scan-Line Interleave (SLI) from

3dfx 3dfx Interactive was an American technology company headquartered in San Jose, California, founded in 1994, that specialized in the manufacturing of 3D graphics processing units, and later, video cards. It was a pioneer in the field from the ...

is a method for linking two (or more)

video card A graphics card (also called a video card, display card, graphics adapter, VGA card/VGA, video adapter, display adapter, or mistakenly GPU) is an expansion card which generates a feed of output images to a display device, such as a computer mo ...

s or chips together to produce a single output. It is an application of parallel processing for

computer graphics Computer graphics deals with generating images with the aid of computers. Today, computer graphics is a core technology in digital photography, film, video games, cell phone and computer displays, and many specialized applications. A great deal ...

, meant to increase the processing power available for graphics. SLI from 3dfx was introduced in 1998 and used in the Voodoo2 line of graphics accelerators. However, the original Voodoo Graphics card and the VSA-100 were also SLI-capable. Nvidia Corporation reintroduced the SLI acronym in 2004 (though it now stands for

Scalable Link Interface Scalable Link Interface (SLI) is a brand name for a deprecated multi- GPU technology developed by Nvidia for linking two or more video cards together to produce a single output. SLI is a parallel processing algorithm for computer graphics, mean ...

). NVIDIA's SLI, compared to 3dfx's SLI, is modernized to use graphics cards interfaced over the

PCI Express PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common m ...

bus.

Function

3dfx's SLI design was the first attempt, in the consumer PC market, at combining the rendering power of two video cards. The two 3dfx cards were connected by a small ribbon cable inside the PC. This cable shared graphics and synchronization information between the cards. Each 3dfx card rendered alternating horizontal lines of pixels composing a frame.

References

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External links

The 3dfx Help Page
3dfx Interactive Graphics cards ar:واجهة توصيل قابلة للتوسع bs:SLI cs:Scalable Link Interface es:Scalable Link Interface fr:Scalable Link Interface ko:스케일러블 링크 인터페이스 it:Scalable Link Interface nl:Scalable Link Interface ja:Scalable Link Interface no:SLI pl:SLI pt:Scalable Link Interface ru:NVIDIA SLI sr:SLI fi:Scalable Link Interface sv:Scalable Link Interface tr:SLI zh:SLI

Function

See also

References

External links