You will get a definite 10~30% boost in in 64 bit apps,but driver problems are still der.
ok now answer my question

Shud i switch to windows vista 32 bit? frm xp sp3?
wt r the reasons other than security,dx10
My concerns abt vista r.....increased power usage,noise, HDD activity,n increaded cpu n gfx temps,sluggishness