they may have fixed it then in one of the recent patches. i used to crash all the time. soon as i upgraded to 16GB in my older system it was fine. my newer system has 24GB of RAM and has always been running fine.
was running 8gb of ddr3 ram fine up till about a week. never had any more or less crashes than anyone else, as long as you're not alt tabbing between screens and running a bunch of other stuff 8gb is fine and unlikely to be the reason for the problems.