An SSD is a much better upgrade right now and it will also help you in the RAM department. Every time the system needs more RAM than you already have, it uses the hard drive as memory, thus slowing down your entire system. An SSD is a lot faster than hard drives, so besides lighting fast windows, software and game loading times it will also help you when your system needs more RAM. That said if a certain game requires exactly 16GB of RAM, then an SSD won't help you. An SSD will certainly make your system a lot more responsive and you'll see the loading icon a lot less on your screen waiting for something to load.