Jag skulle nog inte chansa..
Coolbits verkade fungera förr i alla fall.
Såhär säger Nvidia SLI-faq
- All GPUs must have the same amount of VRAM and an identical Bus Width
-- You cannot use a "2GB" version with a "4GB" version or "3GB" version with a "6GB" 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 but this is no longer available.
https://forums.geforce.com/default/topic/469402/
Hittar ingenting om coolbits i FAQ längre.