SLi with 4GB and 2GB GTX 680 Possible?

[cm123]

Can you, has anyone did SLi with 4GB and 2GB GTX 680 Possible?

 

[cm123]

Found this:

Can I mix and match graphics cards with different sizes of memory?

When purchasing a second graphics card, you should try to match the memory size so that you are ensured full value and performance from your purchase. However, while it is not recommended, NVIDIA does offer the flexibility to run graphics cards with different sized memory by using CoolBits. Using CoolBits (value set to 18), you can force both of the cards to use the lower of the two memory sizes and operate them together in SLI mode. When dissimilar memory sizes are enabled to work together using CoolBits, the effective memory size for each card becomes the smaller of the memory sizes.

 

[hokies83]

You can you have to change something in the Windows registry tho..
Im not 100% sure how to..

If it was me id jsut sell the 2gb card and get another 4GB.

 

[JohnnyChuttz]

You answered your own question. You will be limited to 2GB for each card.