Not sure what screen states that when you log in. That would be a good amount of memory, although 49GBs is a weird amount but a lot.
It's a good idea to give a lot of information in the beginning: Like,
Type of server or main computer
OS
Amount of RAM
Processor
Hard drives: SSD vs HDD
32bit OS vs 64bit OS, although we can generally figure that out
Type of clients
Above information
For istance, if you are using Win 7, going to System Properties will give your exact processor and RAM, generally displayed in Gigabytes.
Bottom line that much RAM would be sufficient to allow the full SQL to access quite a bit.
