This is for all rust players or anyone who uses unity player in general, This will make ie, chrome, firefox run from your video cards gpu instead of your cpu. Thus vastly increasing performance issues.
[editline]19th October 2013[/editline]
After you make the changes I’d suggest restarting to clear system cache, that way you will see the decrease in ram usage/performance changes
I would also suggest disabling any add-ons, extensions etc. free’s up more ram XD