what is sli

[romeoglass]

i plan on running 2 way sli and i have no idea what it does

 

[CTurbo]

It's when you use 2, 3, or 4 nvidia video cards together in one system.

 

[TechyInAZ]

SLI or Scalable Link Interface is a technology that dates years back. It's basically the ability to run two GPUs together.

How it works:

Twin GPUs are put together on two PCIE x16 lanes on a motherboard that is SLI certified. Then on the top you have an SLI bridge, this allows the GPUs to communicate between each other.

Then in game, the GPUs render the frames together. Instead of one GPU doing all the frames, GPU 1 does all the even frames and GPU 2 does all the odd frames.

So for example, GPU 1 does frame 2,4,6,8 while GPU 2 does 1,3,5,7.

This is eventually going away since with newer tech coming soon each GPU will actually render around half of a frame and the other GPU does the other half. This works a lot better since you get way less latency.