Originally Posted by T3kl0rd
Game works for me in SLI.
That card isn't powerful enough to run modern games by itself, you need at least another.
This game was designed to run around 30 FPS on modern high end systems @ max settings. It is one of those "games for future PCs". Rockstar actually stated that.
There's no performance increase by having more than one card SLI or CF as the game don't support it.
GTA is tricky to get perfect and like some have said overclocking the cpu will help and it surly does. The other thing you can do is each time you change the settings restart the game as i found out the game don't give the true performance of the new settings all the time and some times can be really bad.