Needing advice Please!

Ok guys, I have a AMD FX 8300 eight core Processor with 12GB DDR3 ram, 1TB HD and a 1GB AMD 8760 video card DDR5…But, with make filled landscape and 84 actors Im LAGGING SO bad on EVERY click that I cant get this game built. My ram shows 11.5 of 12GB is used and if I push to max my computer blue screens and restarts!

What do I need to do??? Upgrade video card Or get more Ram?? if i need ram How much do I need?? I cant afford a workstation but is that needed? Im lost here guys…Will 16GB ram help?

Closing this one. Please don’t start duplicate threads.