Mix matched gpu memory.

[asator]

Hey guys I'm looking to do sli 680 and I found a great deal on  a msi 680 the only problem is the memory. When i bought mine they had run out of the 4gb version and I had to get 2gb. The card i found is 4gb so the question is how much of a headache would if I did do sli with them. Also just to make sure my psu is a corsair tx850 so i shouldn't have any problems as far as power goes right?

[defunkt]

they will both use 2gb of vram.

[Vindola]

Hey guys I'm looking to do sli 680 and I found a great deal on  a msi 680 the only problem is the memory. When i bought mine they had run out of the 4gb version and I had to get 2gb. The card i found is 4gb so the question is how much of a headache would if I did do sli with them. Also just to make sure my psu is a corsair tx850 so i shouldn't have any problems as far as power goes right?

 

Power is sufficient, but each will use 2GB of VRAM. As for compatibility, technically they should work fine. So go ahead and try.

[defunkt]

Also.. ASATOOOOOOOR.

[JAKEBAB]

All GPUs must have the same amount of VRAM and an identical Bus Width
-- You cannot use a "256MB" version with a "512MB" version or "1GB" version with a "2GB" version in SLI or a 1GB 192 bit bus with a 1GB 256 bit bus Etc.
Note: It used to be possible to enable SLI on cards with differing VRAM (EG 8800GTS 640 and 320) via the "coolbits" mod. However, this mod will not work with newer cards or newer driver

source 

https://forums.geforce.com/default/topic/469402/sli/faq-quot-will-these-two-cards-work-in-sli-quot-sli-what-works-with-what-/

[asator]

Power is sufficient, but each will use 2GB of VRAM. As for compatibility, technically they should work fine. So go ahead and try.

 

Thats what I figures i might go ahead and pull the trigger on this one.

Also.. ASATOOOOOOOR.

Haha very few people know the meaning behind my username