I am running Lubuntu host and virtual box Wins 8.1 guest together, and looking at the current RAM on my machine the output is this:
Even though there is a slight degradation in performance in the overall computer setup, would buying another 8GB of ram improve the performance of my machine significantly? The screenshot I've put up is just my laptop idling. I won't be playing games, and more about using MS powerpoint in the VB.
Thinkpad E460 Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz