Now, I'll write the article. The Ultimate Guide to PSXONPSP660.bin in RetroArch: How to Get Better Performance and Compatibility
The data is clear: The 6.60 BIOS lowers the CPU overhead on the PPSSPP dynarec (dynamic recompiler), resulting in higher frame rates on the exact same hardware.
emulation via RetroArch, standard tutorials often point you toward sourcing original hardware BIOS files like scph5501.bin or scph1001.bin . However, experienced users and specialized frontend builders—such as the creators of Onion OS for the Miyoo Mini —overwhelmingly recommend a different file: .
It is highly stable across different hardware platforms (Android, PC, Raspberry Pi). Why Use This BIOS in RetroArch?
The file is known for being region-free, simplifying the experience of running titles from different regions, notes GitHub's gingerbeardman documentation.