Without performing any work at all to optimize RAM usage: My all-singing, all-dancing OpenWRT router projects have always used less than 100MB of RAM. These days, they usually occupy less than 64MB.
1GB is a ton of RAM for this kind of application. :) What do you anticipate needing more for?
1GB is a ton of RAM for this kind of application. :) What do you anticipate needing more for?