September 13, 2012, 09:44:36 pm
RAM is only memory. RAM = Random Access Memory
Faster RAM = Faster access to memory.
RAM counts towards the size of the models you are buildings.
The bigger the model the more RAM you need.
Does not do a whole lot on the rendering side.
You are only using 3.5 gb of the 8 gb because your model is only 3.5 gb large on the RAM.
Perhaps someone will clarify a little more for you if you are lost. Google helps as well.