windows 7 32 or 64 bit gaming question

[Joe Forster/STA]

Until you have software (game, application, doesn't matter) that needs more than 4 (= 3.25) gigabytes of RAM, there's not much point in switching to a 64-bit operating system, especially that some older 32-bit software may have major problems with it. As a compromise, you can try A) installing a 64-bit OS onto your physical machine and running a 32-bit OS inside a virtual machine (very new games will have major performance problems!) or B) installing both 32-bit and 64-bit OS besides each other within a hypervisor so that you can run them truly in parallel (a lot of RAM needed!).