I have a formula intensive 32 bit worksheet using 32 bit excel 2007 with sufficient ram (over 1 gig available). Would this be any faster if I recreated this worksheet using 64 bit 2010 Excel with say 8 or 16 gigs of Ram. It stated on the Microsoft blog that you might not notice any difference with speed on the 64 bit. Basically, does the bits matter or is it more of an issue of GHZ?