SA Forums member “Therapy” ran a few tests recently to discover how much of a difference 1 GB or 2GB of ram made when it comes to running Battlefield 2.
As you can see, there is a difference between the average frame rates that can be as much as 17%. While that may not seem like a large amount to justify the expense of an extra gigabyte of memory, consider that most reported problems that gamers are complaining about are due to their minimum frame rate numbers being low. While the average numbers may not show a large performance difference, having 2GB of ram will significantly increase your minimum frame rate, causing fewer instances of stuttering.