NVIDIA graphics card compatibility for SLI

[acidydragon]

Hello all,

 

I had a quick question.

I currently have 2 780 Classifieds (EVGA) in SLI.

If I were to add another one, would it have to be a classified version as well? Or would I be able to throw a SC version in there just fine?

 

What about adding an 6gb version?

 

How far outside of the exact card can I go, before SLI will have issues? I know NVIDIA has to be more precise than AMD, but how far?

 

Thanks for any answers

[CoolBeans]

You can add any 780 from any manufacturer, it just has to be a 780 and if you were to get a 6GB 780 you would be limited to 3GB, because that is what the other 780s have

[Superspeed07]

 it might work, but you probably have to get another classified because the pcb is different, might be me but the size differences would drive me crazy

[BiG StroOnZ]

It would be recommended to get a third Classified because if you get another card chances are it won't be able to clock as high as your other two. Besides that there really is no other problems with putting any old GTX 780 as the third card. If you decide to get a GTX 780 6GB (since there is no 8GB version) you would be limited to using 3GB of memory. There have been instances when people have tried to put two cards of the same type with different VRAM amounts and weren't able to get the cards to work together. For that reason you should just stick to a 780 3GB version since getting the 6GB won't assist you at all. 

[dragoon20005]

recent nVidia driver have disabled the ability to SLi same card with different VRAM capacity

 

confirm by nVidia Staff themselves

 

stupid IMO

 

 

AMD don't care about it 

 

I can mix a 270X 2GB with a 270X 4GB or 270