SLI / CrossFire FAQs

[Mousemonkey]

THX this was very usefull

1 question though.... I have a gtx 460 gs 1 gb would it be pointless in buying another same 1 or should i buy the 768mb 1 since of what i understood wouldnt make a diffrence and save 20 euro?

thx in advance

You can't SLi a 768MB GTX460 with a 1GB 460.

 

[dogman_1234]

Sure, because the TOP card would have to either downgrade itself, ( like crossfire), or just shut one card off...or not work at all if that is what nVIDIA likes to play.

 

[Mousemonkey]

Sure, because the TOP card would have to either downgrade itself, ( like crossfire), or just shut one card off...or not work at all if that is what nVIDIA likes to play.

They can't be SLi'd because the memory interfaces are of different sizes, 192 Vs 256.

 

[dogman_1234]

like I said...it may not work @ all.

 

[Mousemonkey]

like I said...it may not work @ all.

There is no "it may not" it just won't and this was made clear from day one when the cards were released.

 

[Maziar]

Edited again.
Special thanks to "mousemonkey" for helping me correct some information.

 

[smexsa]

this was very informative 5/5

 

[dogman_1234]

Thanks! I knew you would like it

*winks to Maziar*

 

[JAYDEEJOHN]

For those with a AMD CF setup and wanting to SLI, yes, SLI
http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=ro&tl=en&u=http%3A%2F%2Flab501.ro%2Fplaci-de-baza%2Fghid-de-activare-sli-pe-amd-890fx-si-rezultate&act=url

 

[Maziar]

^Looks interesting,thanks for sharing.

 

[agk47]

?? would 2 x 1gb 6850's in crossfire beat a single 2gb 5970 ??

i read the 'scaling' on the new 68XX series kicks ass & takes names in crossfire compared to the allegedly superior 58XX series which i believe to be only an improvement as a single GPU over the 68XX's

 

[dogman_1234]

They might be referring to clock speed over the single-dual 5970. IDK, all I know is that the 5970 isn't the world's fastest card anymore.

 

[Maziar]

2 6850s will perform pretty much like a 5970.(They're a little slower in most games)

 

[masky007]

just a biiiiig THANKS!

 

[dogman_1234]

so, not that much info has been given,( or at least I haven't been researching hard enough) but, will the 6970 be close to the performance of the 5970 without the 5970 price tag of 600 USD?

 

[Maziar]

No one knows currently,guess we have to wait till the middle of December.

 

[sevir]

another FAQ is: If i have two monitors, do i plug one in each GPU or keep both in one GPU?

 

[Maziar]

If you are going to use CF,then you have to plug into both cards

 

[The Black Alchemist]

I am curious abotu the perforamance of a CF5770, SLI450, SLI460 768...

 

[dogman_1234]

There are benches around the Forum and Internet. Try searching Tom's first.

 

[Thor_3891]

Great thread it was very informative. There i was looking for info on SLi and found this little beauty. My question is solved "would it be possible or worth it to SLI link my Nvidia 9600 GT with me soon to be purchased Nvidia GTX570"
Answer: yeerrrrr.... No

 

[dogman_1234]

Great thread it was very informative. There i was looking for info on SLi and found this little beauty. My question is solved "would it be possible or worth it to SLI link my Nvidia 9600 GT with me soon to be purchased Nvidia GTX570"
Answer: yeerrrrr.... No

Exactly. That is like Crossfiring an ATI 5970 with a ATI 4350.

 

[Thor_3891]

Or trying to link a rottweiler's brain to a chihuahua's

 

[dogman_1234]

Or trying to link a rottweiler's brain to a chihuahua's

Or linking the rottweiler to the...well, you get the point.

 

[amjay1985]

Thanks Maziar.... Great tutorial
btw.. i noticed that your post was of year 2007. A very very long running thread