If you download a file labeled "PS3 Emulator 32-bit.exe" from a random forum, you are almost certainly downloading malware, adware, or a fake program. Major, legitimate emulators like (the only viable PS3 emulator) are strictly 64-bit applications.

: 32-bit systems are limited to 4GB of RAM , whereas the minimum requirement for PS3 emulation starts at 8GB, with 16GB recommended.