It depends on what you are doing with it. My 2007 iMac with 4 GB RAM is fine doing normal tasks like browsing, watching video, editing spreadsheets and so on. It also has an SSD inside, which makes it react much faster.
As for the RAM: Open Activity Monitor after a day of typical usage (and if the iMac has been started fresh at the beginning of the day) and select All Processes and then sort by Real Mem to show you the process(es) using up your RAM.
As for the RAM: Open Activity Monitor after a day of typical usage (and if the iMac has been started fresh at the beginning of the day) and select All Processes and then sort by Real Mem to show you the process(es) using up your RAM.
I also have SSD, but via FireWire ... Wanted to avoid the hassle of opening the iMac, and the old HDD inside is used for Bootcamp-windows for the kids (gaming) ;-)
I also have SSD, but via FireWire ... Wanted to avoid the hassle of opening the iMac, and the old HDD inside is used for Bootcamp-windows for the kids (gaming) ;-)