Question : Windows XP Pro 64 bit edition ?

I have this question open here :

http://www.experts-exchange.com/Hardware/Q_21480433.html

I have configured it with windows xp pro 64 bit edition but whats the difference between windows xp pro and windows xp pro 64 bit edition ?

Is it worth while getting or can someone help me out :)

Thanks

P.S If anyone from this TA could also put there input on the other question I would really appreicate it because I have never had an AMD system before and it is the dual core AMD Athlon 64 4400 +

Thanks again !

Answer : Windows XP Pro 64 bit edition ?

What you get:

- Supported amount of memory > 4GB
- Increased address space for every process
- Faster vectorial arithmetic operations wirh a register size of 64bit

Disadvantage:

- driver support only for "mainstream" hardware, more "exotic" devices might not work.

Oh, and yes, no more 16bit applications, bye bye DoS.