12 Gb, like it says in my sig. To be honest, I'm not sure I've ever had it all in use at once! Pootling around solo in CloD, the CPU rarely seems to be going over about 60% usage per core (and doesn't use hyperthreading at all, as far as I can see). Sadly, the GPU hits 99% usage, and runs at about 80 °C - I'm not going to need to use the central heating in winter.
