SLI using cards at different clocks

[kchakkar]

I have an EVGA 9800GTX KO core running at 738MHz, Shader Clock Speed of 1836MHz, 512MB GDDR3 Memory running at 2250MHz. Could I use this in SLI with a EVGA 9800GTX clocked at at 675MHz, Shader Clock Speed of 1688MHz, 512MB GDDR3 Memory running at 2200MHz. Or even Tri-SLI.


Also can I mix brands like EVGA with a BFG?

 

[Amidar]

Which ever card has the slowest clock thats what they will both run at or maybe try and the clock the slower card so it matches your fastest & mixing brands is also fine.

 

[MeatLoaf]

Which ever card has the slowest clock thats what they will both run at or maybe try and the clock the slower card so it matches your fastest & mixing brands is also fine.

Actually the card in the top slot determines the speed that both card operates at, so if you have a faster clocked card in the top slot then both run at the faster speed.

If it was me tho id put the slower one in the top slot in case it cant run at the overclocked speeds of the other one

EDIT : @ the OP : What mobo are you using? Both the P35C and the P5B in your sig will not work with SLI, you need an nvidia chipset board like the 680i, 650i, 750i or 780i

 

[Ben M]

just overclock the slower card

 

[Thedog45]

I got me 2 8800gt,s in sli
My 1st was a BFG oc and the 2nd i added with higher clocks is a POV extreme overclock edition now my BFG clocks up its self to match the POV card.
The BFG is in the top slot and the POV in the bottom,i thought the POV would underclock also but this wasnt the case for me which im pleased with as the BFG handles the higher clocks nicely (cant give exact clocks as im at work at the moment).

 

[slimsymeat]

I never new that, with crossfire both cards run at the slower speed regardless of which slot they're in. Cool.