BizHawk vs jgenesis

BizHawk is a free multi-system emulator for Windows and Linux, built around the EmuHawk interface. It is aimed at Tool-Assisted Speedrunners and combines playback with recording and debugging. The project lists systems including 3DO, Apple II, arcade machines, Atari, Commodore, Nintendo, Sega, and PlayStation consoles. EmuHawk provides 10 hotkey-operated save slots as well as unlimited named savestates, along with speed adjustment, frame stepping, and rewind. Users can record input as TAS movies and save screenshots, audio, and video. Debugging tools let users inspect, search, and edit memory across emulated hardware, while Lua or C#.NET can control the core and frontend programmatically. Keyboard, mouse, and gamepad hotkeys can be rebound, and an input mapper covers emulated gamepads and peripherals. The Linux build targets x86_64 and omits Mupen64Plus for N64. Current releases are unavailable on Android and iOS; macOS use is limited to older releases or technical workarounds.

jgenesis is a free, cross-platform emulator for 8-bit and 16-bit consoles. It supports Sega Genesis/Mega Drive, Sega CD, Sega 32X, SG-1000, Master System, Game Gear, NES, SNES, Game Boy, Game Boy Color, Game Boy Advance, and PC Engine/TurboGrafx-16. Save states, fast forward, rewind, and optional CPU overclocking are available on some systems. Expansion support includes Master System FM sound, the Genesis SVP chip, common NES mappers, and most SNES coprocessors. Its GPU renderer offers integer prescaling, optional linear interpolation, configurable pixel aspect ratios, blur, and anti-dither shaders. Keyboard and DirectInput gamepads are supported, including three-button and six-button Genesis controllers. Published builds require a 64-bit x86 CPU with SSE4.2 and a GPU supporting Vulkan, or DirectX 12 on Windows 10 and later. The project estimates about 300 MB of RAM for default settings. Releases come through GitHub, while commit builds remain available for 90 days and may be buggy.