SLI same cards diffirent vram

[Stas823]

Hello
I have recently acquired a GTX560ti 2048mb (Palit version)
i already own 2 GTX560ti asus (both are 1gb)
if i remove one of the asus cards and SLI with the palit 2gb card will it work?

Thanks

 

[Bacon?]

AFAIK you have to use equal VRAM cards.

 

[Phixsator]

If I recall correctly you can do it with some setups BUT, you will not se any benefit from it as you will be held back by the card with the lowest amount of vram.

 

[NightSt@lk3r]

Pair a 2GB card with a 1GB card and the 2GB card will only use 1GB of its vram.

 

[Stas823]

So if i use them both i will get 2gb of vram (as was intended really) but i assume possible sli issues aside it is still better to use 2x1gb than 1x2gb?

also in the future should i be moving to 7xx series of gtx or will it still be alright (in games that is) i know there are no benchmarks for those cards but im assuming that skipping a generation to upgrade should yield good results?

thanks for quick responses

 

[BaDBoY_uK]

Pair a 2GB card with a 1GB card and the 2GB card will only use 1GB of its vram.

This

Other things to consider
1. Aesthetics
2. Clock speeds
3. Drivers - I am not sure a different type of card would cause problems

 

[Stas823]

my box is hidden underneath the desk i rarely look at it but yes one is orange and the other one is black...

the difference between their clock speeds is 10mhz (slower) which i don't think will make huge difference

and they are still at heart the same graphics cards i assume, i will just update to latest drivers and see what happens.

 

[Surveyor]

So if i use them both i will get 2gb of vram (as was intended really) but i assume possible sli issues aside it is still better to use 2x1gb than 1x2gb?

also in the future should i be moving to 7xx series of gtx or will it still be alright (in games that is) i know there are no benchmarks for those cards but im assuming that skipping a generation to upgrade should yield good results?

thanks for quick responses

If you SLI two 1GB cards you effectively have 1GB of VRAM as it's mirrored not added together.

If you SLI a 2GB and a 1GB card (you'll need to use coolbits to get this to work) then you lose 1GB from the 2GB card and you're back to the same position as SLIing two 1GB cards.