The only mature, actively developed PS3 emulator is . And RPCS3 has been 64-bit only for years. PS3 emulation is incredibly demanding: it requires a modern 64-bit CPU, at least 4 CPU cores (preferably 6 or 8), 8GB+ RAM, and a Vulkan-compatible GPU. A 32-bit OS simply cannot address enough RAM or use the necessary modern instruction sets (like AVX2).
Many users run a 32-bit version of Windows on hardware that actually supports 64-bit operations. You can verify your system type easily. Open the . Type About your PC and press Enter. Look for the System type field. ps3 emulator pc 32 bit
The PS3's Cell Processor was an incredibly complex, 64-bit multi-core powerhouse. The only mature, actively developed PS3 emulator is