Advantages of a 64 bit system

Question

From a developer perspective i am trying to understand , what is the selling point of a 64-bit system ?

I understand that more registers are at your disposal , more

Answer 1

When you run multiple processes e.g. debug session, compiler and other tools you will notice a big performance gain if you have lots of RAM in your system. I have 16GB RAM in my Win7 system and I will never go back to having less. Its a bit like when you start using dual monitors, one just isn't enough after that.