SLI question

kdrodgers73

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Jan 4, 2010
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I just built a new rig, my first and very proud, thanks to all you people that screwed up so mine would work the first time I hit power and loaded windows.

I do have an older GTS250 512MB card that I was thinking of running sli with a 1GB version does that work, or do they need to be matched.
 

Godhatesusall

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Jan 17, 2009
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In order for SLI to work, both cards must have the same information in their RAMs. So if you SLI a 1GB with a 512MB card it will probably work, but you will get the performance of SLIing 2 512mb GTS 250 cards
 
+1^
http://www.tomshardware.com/forum/245454-33-crossfire-faqs
"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 RAM to 256MB to operate with the other card, so it wont have its true power. (This option isn't recommended. )"