PCSX ReARMed is the PS1 emulator most people meet without knowing its name: it powers countless retro handheld firmwares and RetroArch’s ARM devices. Comparing it with ePSXe is mostly a question of where you play.
What PCSX ReARMed is
ReARMed is a fork of the PCSX line optimised for ARM processors — its dynamic recompiler was tuned for the Pandora handheld originally, and it became the default PS1 core across Linux-based retro handhelds and the RetroArch ecosystem on ARM. If you own a budget retro handheld, a ReARMed variant is very likely already on it (see our handheld guide).
Where each one wins
- Handhelds and single-board computers: ReARMed, decisively. It was built for ARM, is maintained in that world, and ships in the firmwares. ePSXe has no equivalent presence there.
- Windows desktop: ePSXe, decisively. ReARMed is not a Windows desktop product in any practical sense; ePSXe v2.0.18 is a current, purpose-built Windows release with an HD plugin path.
- Android phones: both appear (ReARMed via RetroArch), but ePSXe’s standalone paid app is the more direct experience, with split-screen multiplayer and the 2.0.19 feature set.
- Enhancement ceiling: neither chases DuckStation-class PGXP/upscaling; both prioritise speed and compatibility on modest hardware. On an x86 desktop wanting enhancements, revisit the DuckStation comparison.
Compatibility and saves
Both run the bulk of the PS1 catalogue; ReARMed’s game-specific fixes reflect its handheld community, ePSXe’s reflect its long desktop history and the 2.0.18 refresh (Valkyrie Profile, MGS Special Missions and friends). Memory cards follow the same standard formats, so moving a library between a desktop ePSXe setup and a handheld is a file copy, not a conversion project — our memory card guide covers the mechanics.
The verdict
This is less a rivalry than a map: ReARMed owns the handheld/ARM territory, ePSXe owns its Windows (and paid Android) corner, and the two meet comfortably in the middle through shared save formats. Choose by device, not by brand loyalty.