windows 7 - advantage of 64 bit os on system with only 2Gb

Im using windows 7 ultimate 32-bit. With 64-bit processor. Will I get any performance benefits if ever I upgrade to 64-bit windows 7, with the same memory(ram) of 2Gb. The same hdd size 250Gb

Answer

No. If, you will see a slight performance decrease (as 64Bit pointers take more memory than 32Bit ones)