Which should I use? 64-bit or 32-bit?

[mercuryman24]

I have a 64-bit ans 32-bit windows setup CD. I'm onto gaming. I have 4gb of ram and great gaming rig.
Which one would suit better for gaming?

 

[Dark Lord of Tech]

64 is the future go with it!

 

[arges86]

x64
the 32 bit won't be able to recognize all 4 gb of RAM. (only 3.4 GB)

There really is no reason anymore to use 32 bit. Especially if your getting a new PC w/ up to date parts (they need to have x64 drivers to work)