Which would help but not 100% required. If you turn off other programs before you start gaming then you can mostly get away with 4GBs. Just don't install any high res texture packs. I have 16GBs of ram in my machine and don't use over 7GBs. If I turned off programs while gaming I can see me using less then 4GB. But that would defeat the point of me buying 16GBs. Overall the system looks good. I hope you have a good PSU, 1080 or better monitor, etc. But that forms a good core gaming system.