Lets say I wanted to make a highly detailed graph of a 3D function. Generally I use something like

Plot3D[(x^2 + y^2)*Sin[1/Sqrt[x^2 + y^2]], {x, -1/8, 1/8}, {y, -1/8, 1/8}, PlotPoints -> {800, 800}]

That literally takes about 2 minutes to evaluate. Looking at the task manager I see that Mathematica does not use as much processing power as it could:

So actually there is no need to make it faster but I wonder if its possible to use mroe processing power.