http://superuser.com/questions/367490/can-a-32-bit-os-machin...
Yes, some programs can have more memory in 32-bit (example: Photoshop) but, as it says there, you have to keep swapping them
So, people, move to 64-bit already, unless you absolutely cannot
http://superuser.com/questions/367490/can-a-32-bit-os-machin...