
im pretty sure all current processors support both versions
if its for a processor your currently using go to the device manager (its in the control panel) and look at the type of your processor and just look it up and it'll be easy to tell

off a good/decent USB flash drive it doesnt take more than 20minutes compared to DVDs never ending install >.>
Windows 7 RC has a very fast install time in-general, I was pleasantly surprised to be up and running within 10 min using a DVD on my old P4 system. Unfortunately, I found the RC to be too unstable for my main system and had difficulty with wireless drivers, especially for the 64 bit version. I would recommend the 64 bit version only if you want to do some gaming or other very memory intensive applications; otherwise, I think the compatibility of 32 will make for a more stable system, seeing as most Vista 32 drivers work well with it.

....DAMN!....I got Windows 7 RC X86..........I don't want to re-install......
Really? First install everything worked for me and still is. I only have Windows 7.....nothing else and it's awesome.![]()
oh you think 16gb is a bit at work i use a system with 28gb of ram and it is actully mostley used up.
If you have 3 gigs of ram, you're fine with a 32 bit system. Only those who plan to install or utilize anything more than 3 gigs of ram in their system would generally use the 64bit OS. 64bit supports 4 gigs and up. I've seen systems running up to 16 gigs of ram in their system. For reason I dont know.
bulletsinthefire is correct when referring to those terms. x86 refers to the architecture of the CPU. If your speaking of OS's in bits then you would refer to 32 bit or 64 bit OS. x86 would be like the old old 8086 cpu's. pc's with the turbo button. good times.
Yeah well I have 4 GB of ram and I want to use them all.