It's been asked a million times on here, but here's the short version. Unless you have some specific app that's coded for a 64 bit OS and processor, you won't notice any difference between XP32 and XP64. This is all assuming you have drivers for it, and all your normal apps are compatible.
![[H]ard|Forum](/styles/hardforum/xenforo/logo_dark.png){kind=logo}