86Box vs FinalBurn Neo

86Box is a free emulator for x86-based IBM PC systems and compatibles, covering machines from 1981 through PCI-bus systems. It emulates processors from the 8086 through the Pentium with an emphasis on accuracy and supports configurable machines such as the IBM PC 5150 and IBM PS/2 line. Users can select video adapters, sound cards, network adapters, hard-disk controllers, and SCSI adapters. Supported guest systems include MS-DOS, older Windows releases, OS/2, many Linux distributions, BeOS, and NEXTSTEP. MIDI output can use Windows MIDI support, FluidSynth, or emulated Roland synthesizers. 86Box runs on Windows, Linux, and macOS and is released under the GNU General Public License version 2 or later. The project offers stable and experimental builds; experimental versions may be less stable or slower. Most emulation logic runs in one thread, so results depend on host and guest configuration. A BIOS is required. The project recommends manager applications for multiple virtual machines, while its built-in manager is still a preview.

FinalBurn Neo is a free emulator for arcade games and selected consoles, with builds or ports documented for Android, Linux, macOS and Windows. Its emulation scope includes Capcom CPS-1, CPS-2 and CPS-3, Neo Geo, and Sega System 16. The project is based on FinalBurn and older versions of MAME, and is intended to run vintage games on modern systems. Described capabilities include accurate emulation, high performance, netplay, rewinding and shader effects. The project documents Windows and macOS builds, Linux SDL builds and Raspberry Pi builds; a LibRetro port is also available through RetroArch for many platforms. It recommends SDL2 over SDL1.2, citing a better renderer, on-screen display, game selection and ROM scanning. Linux SDL2 builds can be compiled with make sdl2 and require SDL2, SDL2_image, GCC, make, Perl and NASM. On macOS, the build supports keyboard and mouse input but not joysticks; its launcher imports ZIP and 7z archives. The listed terms allow use, modification and distribution, but prohibit sale or monetary profit; ROM images require legal distribution rights.