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Diffrent brand SLI

post #1 of 6
Thread Starter 
Ok i tried finding an answer and i end up with diffrent answers.

Ok so its fine to SLI 2 diffrent brands.

However, Does the higher clocked card downclock to the speed of the other card?

Some say its fixed and the stronger card will run full speed.

Other say it will clock down so both card run same speed.

The reason im asking, I can get another 570 really cheap but not the same brand or clocks.
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post #2 of 6
Not sure about the Clocks, but I know this:

You can SLI a EVGA and a ASUS Geforce GTX 570 together.

I believe that aslong as its the Same GPU's that are used, they can be SLI'd together, even if its a non-reference PCB
post #3 of 6
the slower card will either overclock itself to the speeds of the faster card or the faster card will downclock to the speeds of the slower card. It depends which card you put on the first PCIE slot
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post #4 of 6
it will work with different brands and it will use lower card clock
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post #5 of 6
From my experience - using MSI Afterburner and GPU-Z, both shows both cards with dfferent clocks.

Cards:

ZOtac GTX 275 (633, 1134)
Gainward GS GTX275 (648, 1185)

Drivers tried
191.77, 290.99, 289.99

Then using Afterburner - over clocked to (666, 1200)
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post #6 of 6
Thread Starter 
So bottom line is, It has to run same clock speeds.

I guess i then have to run the other card singel and see what kind of OC i can get on it. And then setup SLI and use MSI afterburner to set the clocks on both of the cards.
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