User blog comment:AnonymousTom/Battlefield 3 Beta Announced!/@comment-3168131-20110920132808/@comment-2224289-20110920163917

the only difference between BF3 and BC2's requirements is that BF3 doesn't support DirectX 9.0c (in layman's terms, you need a Windows Vista/7 if you have a Windows XP [just don't use Vista, it sucks ;) ])