Quote Originally Posted by Animeniax View Post
Is it worthwhile to get Win7 64-bit? I already have a copy of 32-bit, but the system only sees 3GB of the 6GB RAM installed. Not sure I want to re-image just to get to 64-bit, but it was surprisingly quick to go from clean install to fully functioning PC with Windows 7 (in about 2 hours) so it might be worth it to go to 64-bit.
I upgraded from XP 32bit to W7x64 around 5 months ago or something. I've only got 3GB of system RAM, but to my knowledge, upgrading to 64bit lets me use a videocard with more video RAM while allowing me to address that 3GB of RAM in full (since memory addressing and its limit applies to both system and video RAM).

I have ran into compatibility issues with software, but I can't really remember the specifics of the few, so I guess it's not that important. It's actually probably more of a W7/XP issue than a 32/64bit issue.

Besides the extra memory, there isn't much else beneficial about it, from experience, since there's hardly any commonly used programs that are written for other x64 performance gains anyway.

The only times I've actually hit my 3GB limit was with Nero and Borderlands.

Both times were due to memory leaks and/or memory hogging bugs.