2 questions plz

I know this was answered already but i cant find it.
Does fs9 gets better if runned on Windows 7 Ultimate 64 or Xp 32?
Does fs9 runs better on a single core processor (3.6 ghz)
or a dual core (1m5 ghz)?
Many Thanks
Does fs9 gets better if runned on Windows 7 Ultimate 64 or Xp 32?
Does fs9 runs better on a single core processor (3.6 ghz)
or a dual core (1m5 ghz)?
Many Thanks