User blog comment:PresidentEden78/Battlefield 3 minimum PC requirements released/@comment-124.182.18.72-20110712105825/@comment-1017446-20110712185327

64 bit is like a major boost compared to 32 bit and 32 bit can support 4 gigs that's what my old rig used to be 32-bit XP with only 4 gigs of RAM