Re: Benefits of using two SLI-enabled cards under Linux?
In theory you can get twice the performance when using SLI but in practice this is quite a bit lower and it depends on what programs you use. SLI can be nice if you buy a card now and later on add an extra card to boost performance or if you want the highest performance there is you can bundle the two fastest cards (geforce 8800 boards).
I wouldn't recommend SLI as in general you can buy a much better single card for the same amount of money. I would invest in a nice Geforce 8800 board.