You can clearly see below that you need more than 1GB of memory to run the game "Far Cry". Far Cry is not that an intensive game, and we ended up with 1.23 GB page file and you can see below that we are running a single instance of Explorer and a task manager.
I have a fear of FEAR the game as it will eat significantly more than Far Cry. We FEAR that you might need even more than 2GB as FEAR of already wants 2GB memory under Windows XP. It works with 1GB as well but it works better with 2GB, and so does the Battlefield 2. We are sure that you will soon be able to buy 4GB gaming kits, at least by the end of the year.
More...Credit: The Inquirer