Recommended Ram

Hi guys.
The installation guide has the following

4. Hardware Requirements
32 bit Operating System requires minimal of 512 MB RAM
64 bit Operating System requires minimal of 1024 MB RAM (recommended)
Recommended is to have 4 GB+ RAM so you would have the full functionality, like Anti-virus scan of emails.

My vps has 2GB RAM.
I can't seem to find anywhere that indicates what functionality requires how much RAM or which functionality would be best to omit with limited RAM.
Can someone point me in the right direction?

Thanks

you have all functionality, clamAV virus scanning requires more ram but 2GB is fine for small servers.

2GB RAM should be more than enough if your hosting a few small sites.

If you plan to host heavy websites, then you might need to upgrade your RAM.