Oddly enough, this laptop shipped with a 32-bit OS and it's always bothered me that 800 or so MB is just.. wasted but whatever.
It seems like it's only using 1 core or thread but it's set affinity to all processors 0-3
Notice the crappy 4FPS and this is on FAR render distance, whereas on the pentium it's around 30
On the laptop playing on tiny it's around 40
I plan to create a machinima soon and neither of my systems are good enough to record at decent framerates.