Well, I have 2 gb of ddr2 ram installed in my computer and windows 7 64 bit. But I want to ask if 64 bit takes more ram than 32 bit. I used to have 32 bit some months back, but upgraded it, because while playing assassin's creed 3, when I reached Boston for the first time, my pc froze and crashed . But after upgrading to 64 bit it didn't freeze. My real question is does 64 bit win 7 takes more ram or 32 bit. Its about the memory usage, not the amount of ram I install.