Are these cards compatible?

[Quitoman]

Can I SLI my 8800GTS 320mb (G80) with a newer 8800GTS 512 (G92)? or even an 8800GT 512 (G92)? this would be great because I cant find any G80 cards anymore!

 

[Mousemonkey]

No, you are going to need another G80 card or two G92's and lose the G80.

 

[Maziar]

Right,plz read the FAQ before posting:
http://www.tomshardware.co.uk/forum/245454-15-crossfire-faqs

Do the cards have to be same model?
I answer it with an example:
You have a NVIDIA Geforce 7800GTX 256, and you want to add another card , the second card has to be 7800GTX exactly.

But what about the memory? Can you add a 7800GTX 512 and use that with 7800GTX 256?
It's recommended to use a 7800GTX 256 with a 7800GTX 256 and 7800GTX 512 with 7800GTX 512.
However you can use a 7800GTX 256 with 7800GTX 512 , BUT the 7800GTX 512 will lower its clock to operate with the 256 one, so it wont have its true power. (This option isn't recommended )

 

[homerdog]

Right,plz read the FAQ before posting:
http://www.tomshardware.co.uk/forum/245454-15-crossfire-faqs

+1