Zilch
in theory 64 bit OS's sound good.
but the devils in the details.
and the details are will ones sound devices n gear and audio apps work well ??.
sometimes it takes a time for developers to issue new drivers etc etc
for a new OS release.
your prolly wanting this new OS approach for the large memory array support.
correct ?? so you can load up on libs of samples ..correct ??
however there is no free lunch mate.
ive looked at komplete and lots of other such packages and big sample libs etc etc..
but the fact is one needs a darn good n powerfull pc with darn good performance
processor/memory/hard drives etc etc to support the new environment.
which is why i suspect the other poster got an i7.
i personally think its too early myself and am lagging behind the curve
with xp, because i feel its just too early.
i personally am looking for more maturity in 7 ..64 bit OS's..before i make a move.
and much more support in the sound drivers area etc etc.

retired puter engr....powertracks on amd......NICE !
"what is the black art of audio engineering ?"
my silly songs...motagator.com/bmanning
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