You're grasping at straws now.
I use that shitbox AMD build I posted a while ago for web browsing. It uses a BE-2300 CPU/2GB DDR2 667/5400 RPM Seagate drive, and it runs just fine. In terms of strictly checking emails and word processing it's just fast as my gaming machine, because I'm not requesting much from it.
Why am grasping at straws even people who barely use computers can tell when there isn't much ram they won't say "there isn't enough ram in this computer" they will just say it is slow. My grandma has a computer that came with 512mb of ram and she could tell it was slow so I am upgrading it to 2 gigs.