SLI with different amount of vRAM?

[mushtafa]

I've currently got a GTX550ti 1GB, and have been looking for another to SLI it. I've found one which has 2GB.
The nVidia site says it won't work, but a few bits I've found online indicate it should 'downgrade' the 2GB card to match and work fine.
Any thoughts?

 

[no_1_dave]

It will act like the 2nd card only has 1GB
SLI will work fine

 

[nicnik]

It will work. it'll downgrade to 1gb only.

I'm not sure 550ti in sli is worth it tho. I guess it depends on the price you can get another for

 

[mushtafa]

Cheers guys.
Going SLI is probably the cheapest I can do at the moment. These cards have sold for £40-£70, so if got one for £50, it'll increase my performance buy 60-80% at a guess.
Unless you can suggest a better second hand card for around £100 that'll give me that increase? (That's if I can get £50 for mine).

 

[Rroff]

It _should_ work but in some instances you may need to use 3rd party software to make it work iirc coolbits but its awhile since I played around with SLI and different amounts of VRAM per card.

 

[Stas823]

i am not sure whether they fixed it but i used to have two 560ti's with different amounts of vram and it would occasionally crash the drivers (since i swapped them to same amounts it stopped) your best bet might be to sell yours for 40-70 and get something like a r9 270x.
http://www.overclockers.co.uk/showproduct.php?prodid=GX-328-SP&groupid=701&catid=56&subcat=1982

 

[ALXAndy]

Just use HyperSLI. If it's gonna work, it'll work. If it ain't it'll BSOD.

http://www.techpowerup.com/forums/showpost.php?p=2414995

You need a CPU that supports Virtualization or you'll have to run it in software mode which is pants.

I bought myself a OCZ Revodrive a while back and had to use HyperSLI so I could use it with my GPUs. I used it to hack open the X4 lane for use with SLI as Nvidia disable it, but, will be trying it out on a non SLI board soon.