Used to be folder. My computer did over 100k points per day to set@home (dual XEON, dual GTX 680) but at about $100 worth of electricity per month, I eventually quit altogether. I still have my computer but using it to play WoW is like using Lamborghini to mow grass. I'll eventually downsize it to a more conventional CPU and sell the mobo with dual XEON but not this year.